Ram Board Calculator: Coverage & Cost Estimator

This calculator works out how many rolls of Ram Board (or any temporary floor protection) you need for a room or area, and the total cost. Enter the room length, width, and the coverage per roll, and you’ll get the number of rolls required and the estimated price.

Formula

The core formula is simple: Rolls Needed = Area ÷ Coverage per Roll, then round up to the nearest whole roll because you can’t buy a fraction of a roll.

In symbols: R = (L × W) / C

• R = number of rolls (rounded up)
• L = room length (feet)
• W = room width (feet)
• C = coverage per roll (square feet per roll)

The total cost is just the number of rolls times the price per roll: Total Cost = R × P, where P is the price per roll.

Worked Example

Let’s use the default values from the calculator: a room that’s 20 ft long and 15 ft wide, with each roll covering 150 sq ft and costing $35.

1. Calculate the area: 20 ft × 15 ft = 300 sq ft
2. Divide by coverage per roll: 300 ÷ 150 = 2 rolls
3. Since 2 is already a whole number, no rounding up is needed.
4. Total cost: 2 × $35 = $70

The calculator shows 2 rolls and $70.00, matching these steps.

What Is Ram Board?

Ram Board is a brand of temporary floor protection, typically made from a heavy-duty, recycled paper-like material that comes in rolls. It’s designed to be laid over finished floors (hardwood, tile, carpet) during construction, renovation, or painting to prevent scratches, scuffs, and spills. It’s usually tan or brown, and it’s held down with tape. While the brand name is common, the calculator works for any similar roll protection product—just check the coverage on the label.

How to Choose the Right Coverage

Coverage per roll varies by product and thickness. Ram Board itself comes in different sizes, often 3.66 ft wide by 50 ft long (about 183 sq ft) or similar. Other brands might have different dimensions. Always check the product label for the exact square footage. When in doubt, measure the roll’s width and length and multiply them to get coverage.

For most residential rooms, a single layer is enough. For high-traffic areas or heavy work (like tile removal), consider a thicker product or double-layer. The calculator lets you adjust coverage per roll to match your specific product.

Common Mistakes When Estimating

• Forgetting to round up: Always round up to the next whole roll. You can’t buy 2.3 rolls.
• Not accounting for waste: Real rooms aren’t perfect rectangles. Add 5-10% extra area for cuts, doorways, and odd corners. You can do this by increasing the length or width slightly in the calculator.
• Ignoring overlaps: If you overlap seams by a few inches, you’ll need more material. For critical floors, add 1-2% to the area.
• Mixing units: Make sure all measurements are in feet. If you measure in inches, divide by 12 first.

Cost Factors Beyond the Rolls

The calculator gives you the material cost, but the full job includes more:

• Tape: Ram Board tape or duct tape to secure seams and edges. A roll of tape can cover roughly 50-100 linear feet of seams.
• Delivery: If you order online, shipping might be free over a certain amount, or it might cost extra based on weight.
• Labor: If you’re paying someone to install it, that’s an hourly cost.
• Disposal: After the job, the used material goes in the trash or recycling—check local rules.

For a quick budget, multiply the calculator’s total cost by 1.15 to cover tape and small extras.

Alternatives to Ram Board

If Ram Board isn’t available or you want a different option, consider:

• Ramboard (generic): Many hardware stores sell similar recycled paper rolls under their own brand, often cheaper.
• Plastic sheeting: Good for liquid spills, but slippery and tears easily. Not ideal for foot traffic.
• Cardboard: Free from appliance boxes, but not waterproof and can bunch up.
• Hardboard (Masonite): Reusable, but heavier and more expensive. Good for heavy wheeled loads.
• Canvas drop cloths: Reusable and breathable, but not fully waterproof.

Each has trade-offs in cost, durability, and water resistance. The calculator works for any roll product—just enter the correct coverage.

Safety and Installation Tips

• Clean the floor first: Dirt and grit under the protection can scratch the floor when walked on.
• Use proper tape: Don’t use standard duct tape on hardwood—it can leave residue. Use the tape recommended by the floor protection manufacturer.
• Lay in strips: Start at one wall and roll out, overlapping seams by 2-4 inches. Tape the seams down.
• Cut with a utility knife: Score the material and fold to snap it for a clean edge.
• Keep it dry: While Ram Board is water-resistant, standing water can seep through. Wipe up spills quickly.
• Remove carefully: When the job is done, pull up the tape and roll the material up for disposal. Check for any adhesive residue and remove with a suitable cleaner.

Frequently Asked Questions

How much does a roll of Ram Board cover?

It depends on the specific product. A common size is 3.66 ft wide by 50 ft long, which equals about 183 sq ft. Other sizes exist, so always check the label. The calculator lets you enter your exact coverage per roll.

Can I use this calculator for other floor protection brands?

Yes. The math is the same for any roll material—just enter the coverage per roll from the product you’re using. The brand doesn’t matter.

Do I need to overlap seams?

Yes, overlapping by 2-4 inches helps keep out dirt and liquids. This means you’ll need slightly more material than the raw area. Add 5-10% to your measurements to account for overlaps and cuts.

Is Ram Board waterproof?

It’s water-resistant, not fully waterproof. It can handle spills and light moisture, but standing water can soak through. For wet areas, consider a plastic film underneath or a different product.

What’s the best way to cut Ram Board?

A sharp utility knife works best. Lay the material flat, score it along a straightedge, then fold and snap it. This gives a clean edge without needing scissors.

How do I dispose of used Ram Board?

Most Ram Board is recyclable if it’s clean and not contaminated with paint or other chemicals. Check with your local recycling program. If it’s dirty, it goes in the trash. Remove all tape and staples before recycling.

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in l | Room Length | ft | 20 | 0 | 1000
in w | Room Width | ft | 15 | 0 | 1000
in c | Coverage per Roll | sq ft | 150 | 1 | 10000
in p | Price per Roll | $ | 35 | 0 | 1000
out rolls | Rolls Needed | rolls | ceil(round(l * w / c, 6)) | 0
out cost | Total Cost | $ | ceil(round(l * w / c, 6)) * p | 2