2015-2020 Ford F-150 13th Gen (P552) — subwoofer box fitment

What we researched for this specific generation: where an enclosure actually fits, what the factory speakers are, how the factory audio is wired, and which real builds and commercial products exist for it. Confidence badges say how well each figure is sourced — this is research, not manufacturer spec.

Body styles covered: Regular Cab, SuperCab, SuperCrew

Where a box actually fits

These are researched envelopes, not a guarantee. Measure your own vehicle — the numbers here tell you what to expect, not what you have.

Supercrew Likely

Locationunder the rear seat, SuperCrew
Outer bounding boxNo independent measurement of the under-seat space is on file for this generation. The largest published vehicle-specific boxes set a lower bound, not the limit: Kicker's 51KFDL7T102 is 55-1/8"W x 8-1/4"H x 13-3/8"D, and Ground Shaker's quad 8" boxes are 56" long, 9" front height, 5 1/2" rear height and 13" deep. Both are contoured to the cab, so their outside sizes describe shapes that fit rather than the space itself.
Known obstructionsTrucks with the Sony premium system carry a floor-mounted factory subwoofer under the rear seat (Tuffy's lockbox listing excludes that option), so an under-seat box has to replace or clear it. Kicker's SF150SC15 manual has Sony-truck steps for relocating the factory amplifier and removing the factory subwoofer before its own box goes in. Ford's own 2015-2018 Kicker kit avoids the floor and mounts on the back wall of the cab.
Usable volume estimate1 ft³

Starting points

Suggested configurations for this vehicle, not prescriptions. Run the numbers in the Box Builder before you buy anything.

Budget

Subwoofers1x10" or 1x12" sealed
Box typesealed
Locationunder rear seat (check for the Sony floor subwoofer first)

Enthusiast

Subwoofers2x10" or 2x12" ported
Box typeported
Locationunder rear seat

Door speaker fitment

Sizes and depths below are what research turned up for this generation. Confirm against your own vehicle before cutting or ordering — trim levels vary.

Front doors Solid

Factory speaker size6x9"
Known obstructionsNone specifically documented
Adapter bracket neededunconfirmed
TweeterNot in the door: the tweeter sits on the A-pillar (0.75 in). CustomSpeakerPods sells A-pillar pods listed for "15-20 Ford F-150-Ford F-250 & F-350", one part across those trucks.

Rear doors Solid

Factory speaker size6.5" (also cited as 6-3/4" — same practical size, SuperCrew)
Known obstructionsNone specifically documented
Adapter bracket neededunconfirmed
Tweetern/a — tweeter is front A-pillar only

Factory audio integration

Factory amp / premium audioPremium audio changed brands inside this generation. 2015-2017 trucks offered Sony premium audio, with a floor-mounted factory subwoofer under the rear seat. For 2018 Ford says the F-150 "is the first Ford vehicle in the U.S. to feature a premium B&O PLAY audio system", built with HARMAN, and lists "10-speakers, AM/FM stereo, and a single-CD/MP3 player"; its 2017-18 vehicle guide calls it "An all-new B&O PLAY Premium Audio System by HARMAN". Ford's own 2015-2018 subwoofer kit works through the factory radio, which Ford says "utilizes the custom DSP built into the radio", so a base truck can add bass without changing the head unit. Owners report a 3.5" center speaker in the instrument panel and a 3.25" speaker elsewhere in the Sony system.
Adding subs without a head-unit swapYes, and the right product depends on the year and the audio system. Base audio, 2015-2018: Kicker's PF150SC15 is for trucks with "MyFord Radio (4in or 8in screen)" and not for Sony premium audio, and Ford's own VGL3Z18808A kit plugs into the factory radio with dealer programming (a Canadian Ford listing is reported to say "Not for use with F-150 Base XL vehicles"; not confirmed). Base audio, 2019-2020: Ford's separate VKL3Z18808A amp-and-subwoofer kit. Sony premium audio, 2015-2017: Kicker's SF150SC15 works "with or without Sony® System", PAC's APSUB-FD21 is built around the factory Sony amplifier, and Metra's FD-PPKT-1 covers the amplified Sony trucks. B&O PLAY, 2018-2020: Metra's FD-PPKT-2, which carries an amp board for that system; PAC's Sony interface does not apply.
Head unitNo replacement needed

Known integration products

Mounting locations

Supercrew Solid

Under the rear seat is where nearly every vehicle-specific box for this truck goes. Ford's own 2015-2018 subwoofer kit, designed with Kicker, takes the other spot: Ford says its enclosure "mounts to the back wall of the cab to keep the load floor flat". Check for a factory subwoofer before buying an under-seat box: a retailer's Tuffy listing says the under-seat lockbox "will NOT fit with floor mounted Sony subwoofer option", and Sony was the premium system on 2015-2017 trucks (PAC and Metra list their Sony-truck parts for those years). Pickup boxes, for reference only: Ford lists 5.5-ft, 6.5-ft and 8.0-ft Styleside boxes. Its 2020 sheet prints 52.8, 62.3 and 77.4 cu. ft. of cargo box volume, and the F-150 pages of its 2017-18 guide print the same three figures (neither set is labelled SAE or EPA). The 2021-2024 F-150 has its own guide; many of the under-seat boxes below are listed for both trucks.

Supercab Solid

SuperCab boxes are separate products from the SuperCrew ones. A retailer lists JL Audio's SB-F-F150SPRCB/10TW3 Stealthbox for 2015-and-newer F-150 SuperCab with one 10-inch TW3 under the rear bench, and adds that the storage divider panel has to come out. Kicker made two powered kits for 2015-2018 SuperCab and SuperCrew trucks: the PF150SC15 for trucks with "MyFord Radio (4in or 8in screen)", not for Sony premium audio, and the SF150SC15, which Kicker says works "with or without Sony® System". NET Audio, Skar Audio, Ground Shaker and Super Crew Sound SuperCab boxes are in the product list below.

Builds and products found for this vehicle

Outside links. Some are commercial products, some are owner builds posted on forums — the label says which. We do not endorse any of them.

Show 37 more
  • SRQ Customs (2 x 10", other (sealed/ported not stated by the maker)) off-the-shelf
    Ford Crew Cab Subwoofer Enclosure - Dual 10". Listed for 2009-2025 (Crew Cab), which covers all of 2015-2020. Outside: 54 x 12 x 12 in (axes not labelled); mounting depth 4.75 in. Sealed/ported not stated, under the back seat; no seat lift required; tire tools stay in place. SRQ's page lists the 2009-2025 F-150.
  • Zenclosures (sealed) off-the-shelf
    Ford F150 SuperCrew Crew Cab 2009-2025 Single Subwoofer Box. Listed for 2009-2025 (SuperCrew), which covers all of 2015-2020. No outside size printed. Volume approx 0.62 ft3 per sub/side; mounting depth 5.00 (6 in magnet) in. Sealed, under seat, down firing; 1.25 in clearance underneath.
  • Zenclosures (sealed) off-the-shelf
    Ford F150 SuperCrew Crew Cab 2009-2025 Dual Subwoofer Box. Listed for 2009-2025 (SuperCrew), which covers all of 2015-2020. No outside size printed. Volume approx 0.62 ft3 per sub/side; mounting depth 5.00 (6 in magnet) in. Sealed, under seat, down firing.
  • Skar Audio (2 x 12", sealed) off-the-shelf
    Dual 12" 1,600W Loaded Subwoofer Enclosure Compatible with 2015-2026 Ford F-150 SuperCrew Cab Trucks (L-VD-VS-2X12FORD-2015-UP-SUPERCREWCAB). Listed for 2015-2026 (SuperCrew), which covers all of 2015-2020. Outside dimensions: not recorded here — check Skar's product page. Sealed, designed to fit under the rear seat of the SuperCrew Cab. Skar lists the F-150 2015-2026 and Lightning 2022-2026, and excludes the 2009-2014 F-150 and the Super Duty.
  • Skar Audio (2 x 10", ported) off-the-shelf
    Dual 10" 1,600W Loaded Ported Subwoofer Enclosure Compatible with 2015-2026 Ford F-150 Super Cab Trucks (L-VD-VS-2X10FORD-2015-UP-SUPERCAB-V). Listed for 2015-2026 (SuperCab), which covers all of 2015-2020. Outside dimensions: not recorded here — check Skar's product page. Ported, under the rear seat of the Super Cab.
  • Audio Design SCG (other (sealed/ported not stated by the maker)) off-the-shelf
    2015-23 Ford F150 Subwoofer Box. Listed for 2015-2023 (Ford F-150 (no cab named)), which covers all of 2015-2020. Outside: 49 x 14 x 7 in (axes not labelled); mounting depth Maximum mounting depth 5.4". Type: Sealed or ported options. Subwoofers: Single 10"/12" sealed or ported; dual 10"/12" sealed.
  • Ground Shaker (sealed) off-the-shelf
    BLACK 8" DUAL SEALED SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-DF15028B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 5 1/4", Length 55", Top Depth 13 3/4", Bottom Depth 11". Volume 1.32 FT^3; mounting depth 5 1/4". Sealed, under rear seat; down firing. SUBWOOFERS WITH WIDE MAGNETS/BASKETS MAY NOT FIT. Ground Shaker prints the same figures for: 10" dual [GS-DF150210B]; 12" dual [GS-DF150212B]; 8" dual [GS-DF150KK28B] (SoloBaric variant).
  • Ground Shaker (sealed) off-the-shelf
    BLACK 8" DUAL SEALED SUB BOX, FITS 15-24 FORD F-150 EXT-CAB (SKU GS-AF15028B). Listed for 15-24 (Ford F-150 Ext-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 3 1/2", Length 49 1/4", Depth 17 1/2". Volume 1.08 FT^3 total; 0.54 FT^3 per subwoofer; mounting depth 4". Sealed, under rear seat; down firing. Ground Shaker prints the same figures for: 10" dual [GS-AF150210B]; 12" dual [GS-AF150212B].
  • Ground Shaker (sealed) off-the-shelf
    BLACK 8" SINGLE SEALED SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-DF15018B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 5 1/4", Length 23 3/4", Top Depth 13 3/4", Bottom Depth 11". Volume 0.57 FT^3; mounting depth 5 1/4". Sealed, under rear seat; down firing. SUBWOOFERS WITH WIDE MAGNETS/BASKETS MAY NOT FIT. Ground Shaker prints the same figures for: 10" single [GS-DF150110B]; 12" single [GS-DF150112B]; 8" single [GS-DF150KK18B] (SoloBaric variant); 10" single [GS-DF150L7T110B] (L7T variant); 12" single [GS-DF150L7T112B] (L7T variant).
  • Ground Shaker (sealed) off-the-shelf
    BLACK 10" DUAL SEALED L7T SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-DF150L7T210B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 5 1/4", Length 55", Top Depth 13 3/4", Bottom Depth 11". Volume 1.32 FT^3; mounting depth 5". Sealed, under rear seat; down firing. FOR KICKER L7T SUBWOOFERS ONLY. Ground Shaker prints the same figures for: 12" dual [GS-DF150L7T212B] (L7T variant).
  • Ground Shaker (2 x 10", sealed) off-the-shelf
    BLACK 10" DUAL SEALED TW3 SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-DF150TW3210B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 5 1/4", Length 55", Top Depth 13 3/4", Bottom Depth 11". Volume 1.25 FT^3; mounting depth 5 1/4". Sealed, under rear seat; down firing. FOR JL AUDIO TW3 SUBWOOFERS ONLY.
  • Ground Shaker (1 x 10", sealed) off-the-shelf
    BLACK 10" SINGLE SEALED TW3 SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-DF150TW3110B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 5 1/4", Length 23 3/4", Top Depth 13 3/4", Bottom Depth 11". Volume 0.52 FT^3; mounting depth 5". Sealed, under rear seat; down firing. FOR JL AUDIO TW3 SUBWOOFERS ONLY.
  • Ground Shaker (2 x 12", sealed) off-the-shelf
    BLACK 12" DUAL SEALED SUB BOX, FITS 01-23 FORD F-150 CREW-CAB (SKU GS-MF150212B). Listed for 01-23 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 8 1/2", Rear Height 5", Length 44", Depth 12 1/4". Volume 1.35 Cubic Ft.; mounting depth 4 3/4". Sealed, under rear seat; upward firing. Air volume line is labelled 'Total Air Volume'.
  • Ground Shaker (2 x 12", sealed) off-the-shelf
    BLACK 12" DUAL SEALED TW3 SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-DF150TW3212B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 5 1/4", Length 55", Top Depth 14 1/2", Bottom Depth 11 3/4". Volume 1.25 FT^3; mounting depth 5 1/4". Sealed, under rear seat; down firing. FOR JL AUDIO TW3 SUBWOOFERS ONLY.
  • Ground Shaker (1 x 12", sealed) off-the-shelf
    BLACK 12" SINGLE SEALED TW3 SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-DF150TW3112B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 7 1/4", Rear Height 5 1/4", Length 23 3/4", Top Depth 14 1/2", Bottom Depth 11 3/4". Volume 0.52 FT^3; mounting depth 5". Sealed, under rear seat; down firing. FOR JL AUDIO TW3 SUBWOOFERS ONLY.
  • Ground Shaker (ported) off-the-shelf
    BLACK QUAD 8" PORTED SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-FF150P48B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 9", Rear Height 5 1/2", Length 56", Depth 13". Volume 2.10 FT3; mounting depth 6 1/2" (WITH A 6" MAGNET DIAMETER). Ported, under rear seat; forward firing. CUSTOM CUTOUT SIZE AVAILABLE UPON REQUEST. Ground Shaker prints the same figures for: 8" dual [GS-FF150P28B].
  • Ground Shaker (4 x 8", sealed) off-the-shelf
    BLACK QUAD 8" SEALED SUB BOX, FITS 09-26 FORD F-150 CREW-CAB (SKU GS-FF15048B). Listed for 09-26 (Ford F-150 Crew-Cab), which covers all of 2015-2020. Outside: Front Height 9", Rear Height 5 1/2", Length 56", Depth 13". Volume 2.30 FT3; mounting depth 6 1/2" (WITH A 6" MAGNET DIAMETER). Sealed, under rear seat; forward firing. CUSTOM CUTOUT SIZE AVAILABLE UPON REQUEST.
  • Sound Off Audio (2 x 12", other (sealed/ported not stated by the maker)) off-the-shelf
    2009-26 F150 SUPERCREW DUAL 12" EXTRA VOLUME (SKU SCREW0912.2 EXTRA). Listed for 2009-2026 (F150 SuperCrew), which covers all of 2015-2020. No outside size printed. Volume 0.8 cubic feet per side; mounting depth 4.5" (shallow woofers). Subwoofers: Dual 12".
  • Sound Off Audio (2 x 10", ported) off-the-shelf
    2015-26 F150 SUPER CREW DUAL 10 PORTED SUBWOOFER BOX (SKU SCREW-15-10.2V). Listed for 2015-2026 (F150 Super Crew), which covers all of 2015-2020. No outside size printed. Volume 2.0 cubic feet internal; mounting depth 5.5". Type: Ported. Subwoofers: Dual 10".
  • Sound Off Audio (other (sealed/ported not stated by the maker)) off-the-shelf
    Dual Sub Box 2009-2023 FORD F-150 SUPERCREW CAB (SKU Screw09 dual reg). Listed for 2009-2023 (Ford F-150 SuperCrew Cab), which covers all of 2015-2020. No outside size printed. Volume 0.8 cu ft per sub; mounting depth 5.25 inches (10-inch subs); 5 inches (12-inch subs). Subwoofers: Dual 8, dual 10, or dual 12 inch subwoofers. Location: Behind rear seat.
  • Sound Off Audio (other (sealed/ported not stated by the maker)) off-the-shelf
    Dual Sub box for 2009-2026 Ford F-150 Supercrew (SKU Screw2015 dual). Listed for 2009-2026 (Ford F-150 Supercrew), which covers all of 2015-2020. No outside size printed. Volume .8 cu ft per sub; mounting depth 5.25 inches (10s); 5 inches (12s). Subwoofers: Dual 8, 10 or 12. Location: Rear seat area.
  • Sound Off Audio (6 x 6.5", ported) off-the-shelf
    F150 SUPERCREW 09-26 PORTED ENCLOSURE FOR (6) 6.5" SUBWOOFERS (SKU SCREW09-6.6). Sound Off Audio's title says 09-26; its description says 09-18, for the F150 SuperCrew. Of the 2015-2020 model years here, it is stated for 2015-2018. No outside dimensions on the product page. Published volume: 2.0 cubic ft total. Type: Ported. Subwoofers: (6) 6.5".
  • Sound Off Audio (4 x 8", other (sealed/ported not stated by the maker)) off-the-shelf
    F150 SUPERCREW 2009-26 QUAD 8" SUBWOOFER BOX (SKU SCREW098.4). Listed for 2009-2026 (F150 SuperCrew), which covers all of 2015-2020. No outside size printed. Volume 2.2 cubic ft total; mounting depth 5.5" (with 5" magnet). Subwoofers: Quad 8".
  • Sound Off Audio (2 x 8", ported) off-the-shelf
    NEW F150 SUPERCREW 2009-20263 DUAL 8" ULTRA DEEP PORTED (SKU SCREW098.2VDEEP). Listed for 2009-2023 (F150 SuperCrew), which covers all of 2015-2020. No outside size printed. Type: Ported. Subwoofers: Dual 8". Location: Under the seat.
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-150 Extended Cab / Super Cab 2009-2026 Single Subwoofer Box (SKU 09F150ECUTSsingle). Super Crew Sound's title says 2009-2026; its description says 2009-2023, for the Ford F-150 Extended Cab / Super Cab. No outside dimensions on the product page. Published volume: .80 cubic foot. Mounting depth 5 3/8" (10" sub); 5 1/8" (12" sub). Subwoofers: Single, fits 8, 10, or 12 inch. Firing: Sub fires down. Maker notes: No seat modification needed. 1 1/4" clearance under the box. Hole cutouts 8" 7", 10" 9 1/8", 12" 11". MDF.
  • Super Crew Sound (sealed) off-the-shelf
    Ford F-150 Extended Cab / Super Cab 2015-2024 Dual Subwoofer Box (SKU 15F150ECUTSdual). Listed for 2015-2024 (Ford F-150 Extended Cab (SuperCab)), which covers all of 2015-2020. No outside size printed. Volume .50 cubic foot Per Sub; mounting depth 5 3/8" (10" sub); 5 1/8" (12" sub). Type: Sealed. Subwoofers: Dual (2); fits 8, 10, or 12 inch subwoofers. Firing: Subs fire down. No seat modification needed. Hole cutouts 8" 7", 10" 9 1/8".
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-150 Supercrew Cab 2009-2026 Dual Subwoofer Box (SKU 09F150SCrewUTSdual). Listed for 2009-2026 (Ford F-150 Supercrew Cab (4-door)), which covers all of 2015-2020. No outside size printed. Volume 1.28 cu ft for the whole box; mounting depth 5 1/4 inches for 10" subs; 5 inches for 12" subs. Subwoofers: Fits 8, 10, & 12 inch subwoofers. Location: Under rear seat; Subs fire down. Seat modification not required; JL Audio TW3 12" sub will not fit this box. 1 1/4" clearance under the box. Hole cutouts 8" 7", 10" 9 1/8", 12" 11".
  • Super Crew Sound (sealed) off-the-shelf
    Ford F-150 Supercrew Cab 2009-2026 Dual Subwoofer Box Extra Deep (SKU 09F150SCrewUTSdualdeepNSL). Super Crew Sound's title says 2009-2026; its Years field and description say 2009-2025, for the Ford F-150 Supercrew Cab. No outside dimensions on the product page. Published volume: Approx. 0.95 cu. ft. Per Sub/Side. Mounting depth 7.00". Type: Sealed Box. Subwoofers: Dual (multiple sizes available). Location: Fits Under Seat; Down Firing Design. Maker notes: REQUIRES 2.50" SEAT LIFT KIT FOR FITMENT. Lift kit not included. Hole cutouts 8" 7 1/8", 10" 9 1/8", 12" 11 1/8". 0.625" MDF. 1.25" clearance under box. Amp rack available as add-on.
  • Super Crew Sound (sealed) off-the-shelf
    Ford F-150 Supercrew Cab 2009-2026 Dual Subwoofer Box Extra Deep with Seat Lift Kit (SKU 09F150SCrewUTSdualdeep). Listed for 2009-2026 (Ford F-150 Supercrew Cab), which covers all of 2015-2020. No outside size printed. Volume 1.10 cubic foot per sub (or.72 per sub with amp rack); mounting depth 7 1/2" (10" sub); 7" (12" sub). Type: Sealed (ports available as add-on option). Subwoofers: 8, 10, or 12 inch. Location: Under rear seat; Down. No seat modification needed. Includes 2.5" Seat Lift Kit, box divider, speaker terminals. Hole cutouts 7" (8" sub), 9 1/8" (10" sub), 11" (12" sub). MDF.
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-150 Supercrew Cab 2009-2026 Single Subwoofer Box (SKU 09F150ScrewUTSsingle). Super Crew Sound's title says 2009-2026; its description says 2009-2025, for the Ford F-150 Supercrew Cab. No outside dimensions on the product page. Published volume: 0.64 cubic foot. Mounting depth 5¼" (10" sub); 5" (12" sub). Subwoofers: Single; fits 8, 10, or 12 inch subwoofer. Location: Under seat, driver's side; Down. Maker notes: No seat modification needed; Floor mats will affect fitment. The boxes are designed without floor mats in the vehicle. 1¼" clearance under box. Hole cutouts 7" (8" sub), 9⅛" (10" sub), 11" (12" sub).
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-150 Supercrew Cab 2009-2026 Single/Dual w/Amp Rack Subwoofer Box (SKU 09F150SCUTSsingleamp). Super Crew Sound's title says 2009-2026; its Years field and description say 2009-2025, for the Ford F-150 Supercrew Cab. No outside dimensions on the product page. Published volume: 1.00 cubic foot total for the box. Mounting depth 5 1/4" (10" sub); 5" (12" sub). Subwoofers: Fits 8, 10, or 12 inch subwoofers. Location: Under rear seat; Subs fire down. Maker notes: No seat modification needed. Includes amp rack. 1 1/4" clearance under the box. Hole cutouts 8" 7", 10" 9 1/8", 12" 11".
  • Super Crew Sound (other (sealed/ported not stated by the maker)) off-the-shelf
    Ford F-150 Supercrew Cab 2009-2026 Upfire Single Subwoofer Box (SKU 09F150ScrewUpFireSingle). Listed for 2009-2026 (Ford F-150 Supercrew Cab), which covers all of 2015-2020. No outside size printed. Volume .80 cubic foot; mounting depth 5 1/4" (10" sub); 5" (12" sub). Subwoofers: Single, fits 8, 10, or 12 inch subwoofer. Location: Fits under the seat on the drivers side; Sub fires up. No seat modification needed; Floor mats will affect the fitment as boxes are designed with no floor mats in the vehicle. 1 1/4" clearance on top of the box. Hole cutouts 8" 7", 10" 9 1/8", 12" 11". MDF.
  • JL Audio (1 x 10", sealed) off-the-shelf
    Stealthbox listed by a retailer for 2015-and-newer F-150 SuperCab (JL's own page now redirects to Garmin and could not be read on 2026-10-15): one 10-inch TW3 thin-line subwoofer under the rear bench. JL's page does not print outside dimensions.
  • JL Audio (2 x 12", other (sealed/ported not stated by the maker)) off-the-shelf
    Stealthbox for the F-150 SuperCrew: two 12-inch TW3 thin-line subwoofers. Fit years UNVERIFIED: a "2009-up" listing could not be confirmed (JL's page now redirects to Garmin and shows only a title). JL's page does not print outside dimensions.
  • Kicker (other (sealed/ported not stated by the maker)) off-the-shelf
    Amplifier and powered subwoofer system listed for "2015 - 2018 Ford F-150 Super Cab & Super Crew with MyFord Radio (4in or 8in screen)". Kicker says it is not compatible with Sony premium audio.
  • Kicker (other (sealed/ported not stated by the maker)) off-the-shelf
    Powered subwoofer system listed for 2015 - 2018 F150 Super Crew and Super Cab (and 2017 - 2019 F250/F350). Kicker's manual says it is "Compatible in vehicles with or without Sony® System".
  • Alpine (2 x 8", other (sealed/ported not stated by the maker)) off-the-shelf
    Sound system upgrade for "2015–2025 Ford F-150 XL, XLT, or STX Crew Cab with Factory-Equipped Base Audio": an S2-DB8V-TRK dual 8" under-seat enclosure beneath the rear seat on side mounting brackets, rated with the kit at 600W RMS. Not for trucks with factory B&O audio.

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Before you cut anything

Measure your own vehicle. Trim levels, factory subwoofer options, and mid-generation changes all move these numbers, and a box cut to a researched figure that does not match your truck is wasted wood. Where a badge reads Unconfirmed, treat the value as a starting point for your own measurement, not as an answer.