Practical answers before you spend.
Worked examples and planning checks designed to lead to a useful decision, not filler content.
How Much Concrete Do I Need for a Patio?
A quick way to calculate patio concrete volume, understand waste allowance and know what to confirm before ordering.
Planning guideHow Much Gravel Do I Need for a Driveway?
Estimate driveway gravel volume and tons from length, width and compacted depth.
Planning guideHow Many Fence Posts Do I Need?
Estimate fence post count from total run length and target spacing, with reminders for gates and corners.
Answers for the job you actually have.
Specific dimensions, visible math and practical assumptions you can compare with a material order or contractor quote.
Fence Paint Calculator: How Much Paint Do You Need?
Estimate fence paint using length, height, sides, coats and product coverage. See a worked 100-foot fence example and adjust for gaps and texture.
CONCRETEHow Much Concrete for a 12×12 Patio?
A 12×12 patio at 4 inches thick needs about 1.78 cubic yards before waste, or about 2.0 cubic yards with a 10% planning allowance.
CONCRETEHow Much Concrete for a 12×20 Patio?
A 12×20 patio at 4 inches thick needs about 2.96 cubic yards before waste, or about 3.3 cubic yards with a 10% allowance.
CONCRETEHow Much Concrete for a 10×12 Shed Slab?
A 10×12 slab at 4 inches thick needs about 1.48 cubic yards before waste, or about 1.6 cubic yards with 10% extra.
CONCRETEHow Much Concrete for a 20×20 Driveway?
A 20×20 driveway at 4 inches thick needs about 4.94 cubic yards before waste; at 6 inches it needs about 7.41 cubic yards.
GRAVELHow Much Gravel for a 12×50 Driveway?
A 12×50 driveway at 4 inches deep needs about 7.41 cubic yards of compacted gravel, or roughly 11.4 tons using 1.4 tons per cubic yard and 10% extra.
GRAVELHow Much Gravel for a 50-Foot Driveway?
For a typical 10–12 foot wide, 50-foot long driveway, gravel needs vary mainly with depth. This guide shows common 3, 4 and 6 inch scenarios.
GRAVELHow Much Gravel for a 100-Foot Driveway?
A 12×100 driveway at 4 inches deep needs about 14.81 cubic yards compacted, or about 22.8 tons with a 10% planning allowance at 1.4 tons per yard.
GRAVELGravel Driveway Depth: 3 vs 4 vs 6 Inches
Compare how gravel quantity changes at 3, 4 and 6 inches of compacted depth, and when deeper sections may matter.
FENCEHow Many Fence Posts for 100 Feet?
For a straight 100-foot fence run, you need about 14 posts at 8-foot spacing or 18 posts at 6-foot spacing before adding special gate or corner posts.
FENCEHow Many Fence Posts for 150 Feet?
A straight 150-foot fence run needs about 20 posts at 8-foot spacing or 26 posts at 6-foot spacing.
FENCEFence Post Spacing: 6 Feet vs 8 Feet
Compare 6-foot and 8-foot fence post spacing, including how spacing affects post count, panel count and layout.
PAINTHow Much Paint for a 12×12 Room?
A typical 12×12 room with 8-foot walls needs 1.91 gallons for two coats at 350 sq ft per gallon, after subtracting one 20 sq ft door and two 15 sq ft windows.
PAINTHow Much Paint for a 1,500 Sq Ft House?
Floor area alone is not enough to size paint accurately. For interiors, wall perimeter, ceiling height, openings and coats matter more than floor square footage.
PAINTOne Coat vs Two Coats: How Much More Paint?
Two coats require roughly twice the paint of one coat for the same paintable area, though actual usage depends on coverage, porosity and color change.