what size ac unit do i need 

The quick answer: one ton of cooling (12,000 BTU) per 500–700 square feet — 700 in cool northern climates, 600 in moderate ones, 500 in the hot South. A 1,800 sq ft home in a moderate climate lands on a 3-ton unit. The chart below covers the common cases, then the factors that move the … Read more

stain vs paint vs seal ·

Three finishes, three very different failure modes. Here’s the comparison that decides it, then the pick by deck age. The three finishes compared Clear sealer Stain Paint Cost per gallon $25 – $35 $35 – $55 $30 – $60 Lasts 1 – 2 yrs 2 – 5 yrs 5 – 10 yrs* How it fails … Read more

how many deck boards

The formula: deck square footage × 2.18 = linear feet of standard 5.5″-wide boards (that factor includes the ⅛–¼″ gap between boards). Divide by your board length, add 10% waste (15% for diagonal decking), and that’s your order. Worked example: 12×16 deck 192 sq ft × 2.18 = 419 linear ft ÷ 16-ft boards = … Read more

How deep should fence posts be

The rule professionals use: bury one-third of the post’s above-ground height, with a 24-inch minimum — and always below your local frost line. A 6-foot privacy fence therefore needs posts about 30–36 inches deep, set in concrete. Fence post depth chart Fence height Hole depth Post length to buy Hole diameter 4 ft 24″ 6 … Read more

How Long Does Concrete Take to Cure

The timeline everyone needs, then the details that keep your slab from cracking: The curing timeline Milestone Time Initial set (no footprints) 24 – 48 hours Walk on it 24 – 48 hours Drive a car on it 7 days Heavy trucks / equipment 28 days Full design strength 28 days Sealing (if desired) ~28 … Read more

How Many Bags of Concrete

The math every bag question comes down to: an 80 lb bag yields 0.60 cubic feet of concrete, a 60 lb bag yields 0.45, and a 50 lb bag 0.375. A cubic yard is 27 cubic feet — so it takes about 45 eighty-pound bags to make one yard. Everything below is that math applied … Read more

AC Repair or Replace 

Your AC died in July, the tech quotes an $1,800 repair, and you have ten minutes to decide. This guide gives you the two rules HVAC pros use themselves, a full repair-cost table so you know if the quote is fair, and the 2026 refrigerant factor that has quietly shifted the math toward replacement for … Read more

Roof Leak Repair Cost 

Most roof leaks cost $400 to $1,200 to repair in 2026 — and the leak’s location matters far more than its size. This guide covers pricing for every common leak type, the insurance playbook (what’s covered, what order to do things in), the honest repair-vs-replace test, and how to spot a fair quote from a … Read more

Cheap Fence Ideas

“Cheap” in fencing spans a 5× price range depending on whether you need a boundary, containment, or privacy — and the cheapest fence for the job is rarely the cheapest fence overall once lifespan enters the math. Here are the nine options that deliver the most fence per dollar in 2026, with honest installed and … Read more

Sonotube Calculator

Your footings Tube diameter 8″10″12″14″16″18″ Depth (ft) Number of tubes Bag size 80 lb bags ($5.40)60 lb bags ($4.30)50 lb bags ($3.80) Bell-shaped base? No — straight tubeYes — belled footing (+25%) Frost depth matters: your tube must reach below the local frost line (typically 30–48″ in northern states, 12–18″ in the South). Your materials … Read more