Supply yard
Product-style photos of aggregates, mulches, roofing, and framing stock that show up on our calculators. Densities and depths are planning ranges — confirm with your local yard ticket and manufacturer sheets. No invented ASTM numbers here.
Typical use: Paths, pads, and surface courses over a prepared base
How it’s sold: Bulk by the ton or yd³; bagged ~0.5 ft³ for tiny patches
Planning density often ~1.3–1.5 ton/yd³ — confirm on the supplier ticket. DIY surface courses commonly 2–4 in over base.
Typical use: Decorative paths, play areas, and drainage surrounds
How it’s sold: Bulk yd³/ton or bags
Rounds walk easier underfoot but can migrate — use edging. Lighter density than angular crushed stone in many yards.
Typical use: Compactable driveway base and pad underlayment
How it’s sold: Usually sold by the ton
Fines help lock under compaction. Highway specs talk about lift thickness (e.g. ≤6 in compacted in CDOT §304 context) — ask your yard for a home driveway recipe.
Typical use: Light-colored paths, French drains surrounds, and base rock where available
How it’s sold: Bulk ton/yd³
Color and hardness vary by quarry. Treat density as a supplier number, not a universal constant.
Typical use: Pavers bedding, leveling courses, and mix sand (not a substitute for structural base)
How it’s sold: Bags or bulk yards
Often ordered alongside gravel for patio builds. Not the same as play sand.
Typical use: Weed barrier under mulch or decorative stone (optional)
How it’s sold: Rolls by square footage
Extensions debate fabric vs. organic mulch alone — fabric can impede soil biology; pin edges and cut for plants if you use it.
Typical use: Flower beds, tree rings, and shrub borders
How it’s sold: Bulk yd³ or 2 ft³ bags (sizes vary)
University extensions commonly cite ~2–3 in depth for landscape beds; keep mulch off trunks (“volcano” piles are discouraged).
Typical use: Decorative beds where longer color retention is preferred
How it’s sold: Bags or bulk
Same depth planning as hardwood; dyed products fade. Order by volume, not bag count alone.
Typical use: Steep-slope residential roof covering
How it’s sold: Bundles / squares (100 ft² coverage)
Manufacturer / ARMA guidance: absolute min slope often 2:12; 2:12–<4:12 needs special underlayment. Typical homes often 4:12–9:12.
Typical use: Under asphalt shingles per manufacturer instructions
How it’s sold: Rolls
Low-slope asphalt installs often require double underlayment — follow GAF/ARMA/CertainTeed product sheets, not this site.
Typical use: Rafters, joists, and general framing (species/grade vary)
How it’s sold: Linear feet / pieces by nominal size
This site only estimates line length from rise/run. Member size still comes from IRC span tables / an engineer — we do not reprint those tables.
Typical use: Outdoor deck stair stringers and ground-contact framing
How it’s sold: 2×10 / 2×12 PT boards typical for cut stringers
Use exterior-rated fasteners with PT lumber. Calculator gives rise/run geometry — not engineered stringer sizing.
Typical use: Exterior deck, stair, and roofing connections
How it’s sold: Boxes by length/gauge
Match coating to treated lumber and outdoor exposure. Code may require specific connectors for decks — check your AHJ.
Photos are generated for illustration. Product color, grading, and bag sizes vary by supplier. Always match the material your yard actually stocks before you order.