Best Storage Sheds for the Money (2026): Kits and Sizes

Value in a shed comes from three numbers: usable floor area, door opening and how long the structure lasts before it leaks, rusts or sags. On those terms, the kits below stand out.

• Best overall: Lifetime 15 x 8 Dual Entry. Dual-wall HDPE with steel reinforcement, eight skylights, and front plus side double doors. The side entry is what makes it work for a lawn tractor.
• Best mid-size resin: Lifetime 8 x 10. UV-protected panels, steel trusses, a screened vent system and an HDPE floor that resists oil and stains.
• Most floor area per dollar: Arrow Shed Elite 10 x 12. Galvalume steel with 72 in. walls and 117 sq. ft. of floor, made in the USA from globally sourced material.
• Cheapest walk-in: Arrow Classic 10 x 8. 74 sq. ft. and 432 cu. ft. behind sliding doors with a 55.5 in. wide opening and a 12-year limited warranty. You supply the floor.
• Best wood shed: Handy Home Beachwood 8 x 12. Framed OSB floor, 7 ft sidewalls and pre-hung 64 in. doors that you paint and shingle to match the house.

Notice what is missing: bargain sheds under 50 sq. ft. with thin single-wall panels. They cost less up front but owners commonly report warped doors and roof panels that flex under snow. If you only need to hide trash cans or a hose, a deck box or vertical storage unit is cheaper and more honest about its size.

Start with the footprint of your largest machine, add walking space around it, then add wall storage. A shed is a walk-in closet: you need an aisle about 2 ft wide to reach the back wall. The chart below uses typical machine dimensions; measure your own equipment and confirm with the shed size calculator.

A riding mower needs an 8 x 10 shed at the absolute minimum and a 10 x 12 shed if you also want to store a trimmer, blower and spreader without climbing over the seat. The shed's floor area matters less than two other numbers: door opening width and ramp height.

A 42 in. deck plus its folded discharge chute is wider than 42 in., and a 54 in. deck is wider still. Measure your machine at its widest point and add at least 6 in. of clearance on each side of the door opening. The Arrow Classic publishes a 55.5 in. wide door opening, which suits a push mower and a small tractor but will be tight for a 54 in. deck. Double doors that swing fully open, like those on the Suncast Tremont 8 x 13 and the Lifetime dual-entry kit, are easier to drive through than sliding doors, which lose a few inches to the track.

Floor kits raise the threshold by several inches, so plan a ramp. Resin sheds with an included floor sit on a level pad; you can build a short ramp from treated lumber or buy a shed ramp kit sized to the door. See the dedicated pages for shed size for a riding mower and shed size for a zero-turn mower, and if you are still choosing the machine, compare riding lawn mowers by deck width first. Buying the shed after the mower avoids the most expensive mistake in this category.

All three materials can last decades if the foundation is level and the shed is anchored. They fail in different ways, so choose by climate and upkeep tolerance. The full breakdown is in resin vs metal shed.

Maybe on the permit, always on the foundation. Many building codes exempt small one-story accessory structures from a building permit up to a set floor area. The model International Residential Code sets that exemption at 200 sq. ft., but many towns adopt a smaller limit such as 120 sq. ft., and setback rules from property lines, easements and septic fields still apply even when no permit is needed. HOAs often add their own rules on height, color and placement. Call your local building department and read your HOA covenants before you order.

Every shed needs a level, well-drained base. Resin kits with an included floor still need a flat pad: compacted gravel inside a treated timber frame, a concrete slab, or pavers. Steel kits without a floor need a frame or slab plus an anchor kit. A 4 in. deep gravel pad for an 8 x 10 shed takes about 1 cu. yd. of stone, or closer to 1.5 cu. yd. if the pad extends a foot past each wall; the gravel calculator gives the exact figure for your footprint. The step-by-step foundation choices are covered in how to choose a storage shed.

• Door opening, not shed size. Compare the published door width to your widest machine plus clearance.
• Floor included or not. A floor kit, lumber frame or slab can add a meaningful amount to the project on steel kits.
• Snow load where published. Few resin kits publish a number. The Suncast Modernist 7 x 7 lists 40 lb per sq. ft., which is useful in snowy regions. Where no number is published, clear heavy snow off the roof.
• Wall height. Walls of 72 in. or more let you hang a string trimmer and a pole saw vertically.
• Ventilation. Vents reduce condensation and heat buildup, which protects batteries and fuel.
• Assembly time. Owners commonly report that 8 x 10 and larger kits take two people a full weekend. Sort parts before you start.
• Delivery. Large kits ship freight in heavy boxes. Plan where the pallet will sit.

Once the shed is up, organize the inside with wall storage and get small items out of the way in a deck box. If your yard is still coming together, the new homeowner yard equipment checklist helps you size the shed for what you will own in two years, not just today.