Will It Fit? A GMC and Buick Cargo Guide for Home Projects, Gardening and DIY

October 3rd, 2026 by

Short answer: for a full 4×8 sheet of plywood lying flat with the tailgate closed, you need a full-size truck with a long bed. That means a GMC Sierra 1500 long bed. For bagged mulch, flat-pack furniture and nursery runs, the Yukon and Yukon XL have the most room in the lineup, and the Acadia and Enclave are close behind for most project hauls. If you mostly carry groceries and the occasional gallon of paint, a Terrain, Envision or Encore GX is plenty.

What we see in Monroe

Around Monroe, one of the biggest hauls isn’t plywood. It’s kids and their gear. Travel baseball and softball are big here, and a tournament weekend means bat bags, buckets, chairs, coolers and a pop-up canopy, plus a teammate or two who needs a ride. If that’s your weekend, look hard at the space behind the third row, not just the max cargo number.

Illustration: a mom and two softball players unloading bat bags, chairs and a cooler from a GMC Yukon at a tournament
Illustration created with AI.

SUV cargo space, side by side

Two red GMC Acadia SUVs and a red Buick Envista ST on the Jim Taylor Buick GMC lot in Monroe, LA

Cargo volume is measured in cubic feet with the rear seats in place and folded. “Max” means everything behind the front seats is folded.

Model Behind 3rd row Behind 2nd row Max (behind 1st row) Max towing
Buick Envista – 20.7 42.0 Not rated
Buick Encore GX – 23.5 50.2 1,000 lbs
Buick Envision – 25.2 52.7 1,500 lbs
GMC Terrain – 29.8 63.5 1,500 lbs
Buick Enclave 22.9 about 57 97.5 5,000 lbs
GMC Acadia 23.0 about 57 97.5 5,000 lbs
GMC Yukon about 26 about 73 122.8 Up to 8,400 lbs
GMC Yukon XL 41.5 93.6 144.5 Up to 8,200 lbs

Sources: buick.com Envista, Encore GX, Envision, Enclave; gmc.com Terrain, Acadia, Yukon. Some second- and third-row figures are from Edmunds and Cars.com; “about” marks rounded figures. Towing requires proper equipment.

What fits where: common project hauls

Illustration: a GMC Sierra in a driveway with a 4x8 sheet of plywood and lumber in the bed and the tailgate down
Illustration created with AI.
Haul Comfortable fit Notes
Travel ball weekend: bat bags, buckets, chairs, coolers, a canopy, plus kids Acadia, Enclave, Yukon, Yukon XL Check the space behind the third row: 22.9 cu ft (Enclave) up to 41.5 cu ft (Yukon XL).
Weekly groceries, a few paint cans Any model above Envista and Encore GX are easy to park downtown.
Flat-pack bookcase or dresser box Terrain, Envision and up, with rear seats folded Measure the box. Long boxes can ride beside a folded seat.
A big garden-center run (bagged soil, mulch, a few shrubs) Acadia, Enclave, Yukon, Yukon XL, or any truck bed A truck bed keeps dirt out of the cabin and is easy to hose out.
Lumber, trim boards, a ladder Sierra 1500 or Canyon Longer pieces ride with the tailgate down, flagged when the overhang requires it.
Full 4×8 sheets of plywood or drywall, flat Sierra 1500 long bed See the next section.

The 4×8 sheet question

Red GMC Sierra 1500 and Sierra HD pickups lined up at Jim Taylor Buick GMC in Monroe, LA

A standard sheet is 48 inches wide and 96 inches long. For it to lie flat on the bed floor, the space between the wheel wells has to be wider than 48 inches. The floor also has to be longer than 96 inches if the tailgate stays closed.

  • GMC Sierra 1500: about 50.6 inches between the wheel wells, so the sheet lies flat. The long bed’s roughly 8-foot floor fits it with the tailgate closed. On the short and standard beds, drop the tailgate or use the available MultiPro Tailgate to support the overhang.
  • GMC Canyon: about 46 inches between the wheel wells on a 61.7-inch bed, so a full sheet rides on top of the wells with the tailgate down. Fine for a couple of sheets on a short trip; for a big drywall job, a Sierra or a delivery is easier.
  • SUVs: manufacturers don’t publish a cargo floor width and length that would confirm a full sheet fits. Bring your tape measure to the lot, or ask us to measure one for you.

Bed width source: Cars.com Sierra 1500 specs and Canyon specs.

Features that help on project days

  • MultiPro Tailgate (Sierra, available): folds into a step, a load stop and a standing workstation.
  • Bed tie-downs and bed lighting for securing loads at the end of the day.
  • Hands-free power liftgate (available on many SUVs) for when your arms are full of potting soil.
  • Trailering packages if a utility trailer is part of your plan. Acadia and Enclave go up to 5,000 lbs when equipped.

Model years on the lot

GMC and Buick now show 2027 models for Terrain, Acadia, Yukon, Sierra 1500 and Enclave, while Canyon, Envista, Encore GX and Envision show 2026. The cargo figures above are the ones the manufacturers publish today. The Sierra 1500 is fully redesigned for 2027, so check bed dimensions on the specific truck.

Frequently asked questions

Which GMC or Buick SUV has the most cargo space?

The GMC Yukon XL, at 144.5 cu ft behind the first row, per GMC.

Will a 4×8 sheet of plywood fit in a GMC Sierra 1500?

Yes. It lies flat between the wheel wells (about 50.6 inches). It fits with the tailgate closed in the long bed, or with the tailgate down in the short and standard beds.

Can I bring my own measurements to test fit?

Please do. Visit Jim Taylor Buick GMC at 500 N 18th St in Monroe, browse new inventory, or call (318) 387-7022.

Specifications as published by GMC, Buick and the sources linked above as of October 2026. They vary by trim and configuration. Always secure and flag loads, and never exceed your vehicle’s payload or towing ratings.

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