Can I burn pressure-treated lumber?

No. Burning pressure-treated lumber is unsafe because it can release toxic chemicals into the air, which may harm health and the environment.

What is the volume of 10 boards measuring 2 m × 0.3 m × 0.05 m?

The total volume is 0.3 cubic meters. One board is 2 × 0.3 × 0.05 = 0.03 m³, and 0.03 m³ × 10 boards = 0.3 m³.

How do I calculate lumber volume?

Measure the length, width, and thickness of the lumber, then multiply them to get the volume of one piece. Multiply by the quantity to get the total volume.

How do I use a lumber calculator?

Enter the length, width, thickness, and number of pieces. The calculator will show total volume and total length. If there is a price section, enter the price per piece to get the total cost.

What is a board foot?

A board foot is a unit of volume. One board foot equals one square foot that is one inch thick (144 cubic inches, or 1/12 cubic foot).

How do I calculate board feet?

Use the board foot formula: board feet = length (feet) × width (inches) × thickness (inches) ÷ 12. Keep the units exactly as shown.

How do I estimate wood weight for a load of lumber?

Find the wood density for the species and moisture condition, calculate the lumber volume, then multiply density × volume to get weight per piece. Multiply by the number of pieces to get total load weight.

Why does green lumber weigh more than kiln-dried boards?

Green lumber has higher moisture content and water content, which increases its overall weight compared to kiln-dried boards.

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Mortar Calculator

Estimate mortar volume and bags for a brick or CMU block wall (USA-first). Change assumptions anytime.

Unit system ?

Wall material ?

Wall length ?

Wall height ?

Openings area (optional) ?

Waste / overage % ?

Unit size preset ?

Joint thickness ?

Mortar bag size ?

Yield per bag (volume) ?

Optional: mortar type (for mix ratio guidance)

Mortar type ?

Mix ratio (cement : lime : sand)

—

Ratios and strengths reflect common guidance (reference-style). :contentReference[oaicite:14]{index=14}

Results

Net wall area

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Estimated units

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Mortar (wet volume)

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Mortar bags (rounded up)

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Details

Mortar (dry mix volume)—

Mortar (yd³ equivalent)—

Waste included—

Bag yield used—

Assumptions (transparent)

Units are estimated using (unit length + joint) × (unit height + joint) layout spacing.
Mortar wet volume ≈ wall volume − unit solid volume (simplified). Best for typical brick/CMU walls.
Dry-mix volume uses a factor of 1.33× (common guidance). :contentReference[oaicite:15]{index=15}
Bags are always rounded up to whole bags. :contentReference[oaicite:16]{index=16}

If your block has large voids, your real mortar may be lower. For exact spec work, follow manufacturer coverage data.

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CalcHub is an online platform offering free, easy-to-use calculator tools designed to help with a wide range of everyday and professional calculations. These tools are built to simplify tasks across categories like finance, health, math, conversions, and more — all accessible through your browser without needing an account.

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