How Much Does T1-11 Siding Cost in 2025?

This article was updated using automation technology and thoroughly reviewed for accuracy by HomeAdvisor Editor Ryan Noonan.

Expect to spend between $4,000 and $14,000 to install T1-11 siding, depending on the panel you select, local labor rates, and any additional upkeep required along the way. Homeowners pay between $2.50 and $7 per square foot for T1-11 siding, while OSB panels cost $1.60 to $2 per square foot. Setting a realistic budget and hiring an experienced siding installer helps you pay for what matters and protect your home’s curb appeal.

T1-11 Siding Cost Factors

The cost to replace T1-11 siding depends on several factors, including the type of siding you choose and the size of your home.

Home Size

Your home’s size determines how much material you’ll use. A larger home requires more labor and materials, directly affecting your T1-11 siding cost estimate. T1-11 siding is often sold in 4-by-8-foot sheets, which have an area of 32 square feet.

Thickness

Whether you pick plywood or OSB, both come in multiple thicknesses. Thicker panels cost more than thinner ones, but they provide added strength and resistance to dents.

On average, T1-11 siding installation costs between $32 and $60 per 4-by-8-foot sheet, depending on thickness and whether it’s treated. T1-11 plywood consists of multiple layers of thin wood veneer. These layers are pressed and bonded together, increasing the material’s dimensional stability. It works well as a siding material because the large panel size covers a larger area than single wooden boards.

Labor

Siding installation pros charge $1.50 to $3.50 per square foot, or $40 to $75 per hour for labor. Many contractors also set a minimum service fee, so minor jobs can end up costing more per square foot.

Accessibility

Taller homes or complex landscapes increase labor costs by 20% because crews require additional equipment and time to complete the work. Before installation, ask your contractor about any extra fees that may apply.

Additional T1-11 Siding Cost Factors

In addition to the cost of T1-11 siding labor and materials, other vital cost factors include removal, cleanup, and ongoing maintenance.

Cleanup and Disposal

If you’re removing existing siding, expect your total project costs to increase. You’ll need to plan for extra junk removal fees to haul away and properly dispose of old siding and job-site debris. 

Ongoing Maintenance

Both OSB and T1-11 plywood siding require regular maintenance to extend their lifespan. The materials involved make them especially vulnerable to pests and water damage.

T1-11 Plywood

T1-11 plywood stands up to water better than OSB, so it often lasts longer and needs less upkeep. You can paint, stain, or reseal the panels for $1,000 to $3,000, depending on the size of your home and the professional you hire. A quality stain adds color and an extra layer of defense against moisture and bugs.

Maintenance includes plugging holes or weak spots caused by weather exposure and natural knotholes. This can be done as a DIY project for minimal expense, though siding specialists tend to be more thorough to ensure the problem is fixed for good.

Most T1-11 siding has an average lifespan of 15 to 20 years. You can increase that lifespan by regularly staining or painting the exterior, fixing holes in the board before water can penetrate, and installing a gutter system to keep moisture away from the plywood.

OSB

OSB is susceptible to water, which is why weatherproofing is an essential part of its maintenance. It needs to be primed and painted rather than stained, which helps with both appearance and waterproofing. Expect to pay between $1,000 and $3,000 to paint your wood-based siding.

Weatherproofing also includes properly sealing any edges you cut when building or repairing your OSB siding. Finally, consider adding a special weatherproof protection coating to the material, which costs between $30 and $50 per 3-gallon bucket at your local hardware store.

When your OSB board becomes cracked or broken, it’s time to consider potential repairs. OSB siding repair costs vary depending on the type of repair necessary. Remove and replace old boards with new sheets. Minor issues, such as small areas of damage, can be repaired for $200 to $500 per panel, though if the repair costs become too high, complete replacement may be more cost-effective.

T1-11 vs. OSB Siding

T1-11 siding, also known as plywood, is an affordable, durable type of composite wood with a range of customization options. OSB, which stands for Oriented Strand Board, is made from wood chips and a resin binder. It is then sealed with pressure and heat to form siding for your home. Due to its design, OSB is more prone to water damage, mold growth, wood expansion, and rot.

As metal siding costs considerably more, OSB and T1-11 siding are attractive options for homeowners on a budget. Compare vinyl siding installation costs and board-and-batten siding costs to inform your decision about which siding option may be best for your home.

DIY T1-11 Siding Installation vs. Hiring a Pro

You can install T1-11 siding yourself if you possess basic carpentry skills, own the necessary tools such as a circular saw and nail gun, and feel comfortable working at heights. DIY saves on labor costs but requires time for precise measuring, cutting, and sealing. Mistakes can lead to water damage, structural issues, or the need for early repairs.

Hiring a professional siding installer avoids these mistakes and ensures the correct installation of a moisture barrier, compliance with local codes, and access to the manufacturer's warranties. A local siding contractor handles preparation, panel alignment, and finishing details to ensure long-term performance.

Budgeting for T1-11 Siding Installation

A little planning goes a long way toward keeping your 4-by-8-foot siding project on budget:

• Collect at least three competitive quotes from local contractors to accurately assess the cost of replacing T1-11 siding on your home.

• Be diligent in maintaining your siding regularly to extend its lifespan.

• Choose standard panel sizes to minimize custom cutting and reduce waste materials.

• Opt for mid-grade T1-11 siding of average thickness to strike a balance between durability and affordability.

• Coordinate with neighbors who may be thinking about replacing their home’s siding at the same time.

• Check for local rebates and programs that may offer discounts on eco-friendly options.

How HomeAdvisor Gets Its Cost Data

No place is more important than your home, which is why HomeAdvisor connects homeowners with local pros to transform their houses into homes they love. To help homeowners prepare for their next project, HomeAdvisor provides readers with accurate cost data and follows strict editorial guidelines. After a project is complete, we survey real customers about the costs to develop the pricing data you see, so you can make the best decisions for you and your home. We pair this data with research from reputable sources, including the U.S. Bureau of Labor Statistics, academic journals, market studies, and interviews with industry experts—all to ensure our prices reflect real-world projects.