Flooring options
Choose the deck that suits how you’ll use your building — and beef up the joists for heavy loads.
Pick your floor
Both decking options are 5/8″. Standard framing is 16″ on-center joists rated for a 300 lb point load; upgrade for heavier use.

Engineered Tongue & Groove
5/8″ engineered T&G panels — exceptionally strong and stiff for a flat, stable, virtually seamless floor. Free of knots and patches, with moisture-resistant resins.
- 5/8″ engineered tongue-and-groove
- Flat, stable, virtually flawless surface
- Moisture-resistant advanced resins
- Choose this for a seamless finished floor

Treated Square Edge
5/8″ CDX pressure-treated plywood with a lifetime limited warranty against termites and fungal decay — the choice when durability matters more than a flawless look.
- 5/8″ CDX pressure-treated plywood
- Lifetime warranty vs. termites & fungal decay
- Extremely durable underfoot
- Best value for shops & storage

Floor Joist Upgrades
Standard is 2×4 joists 16″ on-center. Upgrade to 12″ on-center and 2×6 joists for a stiffer, heavier-duty floor that handles vehicles and equipment.
- 12″ on-center joist spacing upgrade
- 2×6 joists for heavier loads
- Standard on garage packages
- Rated well beyond the 300 lb standard point load
Ready to build yours?
Design your exact building — every option included — or see the rest of the choices.