Fibre cement board prices range from about $10 to $75 per sheet, depending on size, thickness, and finish; installed siding commonly costs $6-$13 per square foot. The final price depends on whether the project uses small backer boards or exterior siding, plus labor, access, removal, and regional freight.
| Item | Low | Average | High | Notes |
|---|---|---|---|---|
| 3-by-5-ft backer board | $10 | $17 | $25 | Typically 1/4- to 1/2-in. thick |
| 4-by-8-ft siding panel | $35 | $55 | $75 | Price varies with texture and finish |
| Fiber cement lap siding | $1.50/sq. ft. | $2.50/sq. ft. | $4/sq. ft. | Material only; profile and paint affect price |
| Installed fiber cement siding | $6/sq. ft. | $9/sq. ft. | $13/sq. ft. | Typical labor and materials, before major repairs |
| 1,500-sq.-ft. siding project | $9,000 | $13,500 | $19,500 | Installation; complex projects can exceed this range |
What fibre cement board sheets cost by size and use
Small cement backer boards for tile work generally cost $10-$25 for a 3-by-5-foot sheet. Larger exterior panels are commonly $35-$75 for a 4-by-8-foot sheet, or roughly $1.10-$2.35 per square foot before waste. Siding planks are often priced by piece, with standard lap boards running about $8-$18 each depending on length, profile, and finish.
For a typical 1,500-square-foot exterior, siding material alone may run about $2,250-$6,000. Installation brings the usual project total to approximately $9,000-$19,500, assuming ordinary access and no extensive sheathing or framing repairs. Assumptions: U.S. mid-market materials, standard installation, and typical access. Check whether a quote covers boards only or a complete installed siding system.
How boards, trim, labor, and disposal shape the quote
Installed pricing bundles several expenses. A quote should identify material quantities, labor, trim, and removal separately so competing bids cover the same work. Delivery may be charged separately, especially for bulky panels or remote sites.
| Quote component | Typical range | What changes the charge |
|---|---|---|
| Boards and siding | $1.10-$4/sq. ft. | Panel size, grade, profile, and factory finish |
| Installation labor | $3-$7/sq. ft. | Cutting, fastening, height, and layout |
| Trim and flashing | $1-$4/linear ft. | Corner, window, and door details |
| Old siding removal | $1-$3/sq. ft. | Layers, fasteners, and disposal rules |
| Delivery and disposal | $150-$600 | Distance, load size, and local fees |
Removal and trim are frequent reasons two apparently similar bids differ. Ask whether taxes, flashing, caulk, fasteners, and cleanup are included; omitted items can add hundreds or thousands of dollars to the final bill.
Which thickness, board length, and finish raise prices
Thickness and product type matter: a 1/4-inch backer board is intended for tile assemblies, not exterior siding, while exterior planks and panels are made for weather exposure. A textured or factory-painted siding product usually costs more than a primed board, but it can reduce field painting and finish labor.
Waste and layout also affect material totals. A simple rectangular wall may need about 5%-10% extra board for cuts; multiple gables, narrow returns, or many windows can push waste toward 10%-15%. Panels longer than 12 feet may reduce seams but can cost more to handle and transport. Compare prices for the same product line, thickness, dimensions, and finish.
How installation hours change the siding labor bill
Contractor labor commonly accounts for a large share of an installed siding price. A small crew may take several days on a straightforward home, while a two-story house with detailed trim can take a week or longer. Labor costs rise when installers must work around steep ground, complex rooflines, brittle old siding, or hard-to-reach elevations.
Some contractors price by area; others estimate crew hours and material quantities. A useful comparison is the implied labor rate: At roughly $50-$100 per worker-hour, 80-120 worker-hours would equal $4,000-$12,000 in labor before materials and other charges. Request the wall area, crew size, and included preparation in writing.
When a siding repair beats replacing every wall
Replacing a few damaged planks can cost about $300-$1,500, depending on the number of boards, matching difficulty, and access. A small repair may have a contractor minimum charge of $250-$500 even when material needs are limited. If damage is widespread, a full replacement may be more practical than repeated patching, especially when the existing product cannot be matched.
Backer-board work is a separate job category: installing cement board under tile often costs about $3-$8 per square foot for labor and board, excluding tile, waterproofing upgrades, and demolition. Price the actual damaged area before treating a repair quote as comparable to full replacement.
How regional labor and freight affect installed prices
Rates often run 10%-20% above national mid-market estimates in high-cost metropolitan areas and 5%-15% below them in some rural markets, though local contractor availability can reverse that pattern. Freight may be a notable expense where suppliers are distant or the order is too small for a full delivery load. Severe weather regions can also have busy seasons that limit scheduling.
These are planning adjustments, not guaranteed local rates. For example, a $13,500 mid-market estimate might become roughly $14,850-$16,200 with a 10%-20% premium. Use written local bids to replace broad regional averages before setting a project budget.
How to lower the fibre cement board price without cutting corners
Keep the scope consistent and avoid unnecessary premium finishes or decorative trim. Choosing primed rather than factory-finished siding can reduce material expense, although painting adds labor and paint costs. Combining delivery with other materials may reduce a separate trip charge, and scheduling outside a contractor’s peak workload can sometimes improve availability.
Homeowners can clear shrubs and move outdoor items before work begins, but cutting fibre cement requires appropriate dust controls and protective equipment. Do not remove required flashing, weather barriers, or manufacturer-specified clearances to save money. Compare at least three itemized estimates with matching quantities, removal, trim, finish, and warranty terms.
When removal, permits, or wall repairs add extra charges
Replacing siding can reveal damaged sheathing, rot, or moisture problems after the old boards come off. Patching sheathing may add roughly $2-$5 per square foot of affected wall, while framing repairs are priced to the damage and can raise a project total substantially. Asbestos testing or special disposal may also apply to older materials; these costs are not included in standard removal ranges.
Permit requirements depend on the local jurisdiction and whether work changes the building envelope or includes structural repairs. Permit fees commonly range from about $50-$500, but some locations charge more or require inspections. Ask the contractor to identify concealed-damage allowances, disposal arrangements, and permit responsibilities before work starts.