Deck Calculator – modern wooden deck surrounded by nature

Deck Calculator

Estimate the cost of building a new deck or renovating your existing one in just a few minutes. The calculator uses typical costs from deck projects in the Helsinki metropolitan area – the exact price is always confirmed on site.

Enter deck details

Fill in the details below to get an indicative price estimate for your deck.

Deck details

Estimate the deck area. For example, a 3 x 4 m deck = 12 m².

Fill in the form to get an estimate

Enter the deck details on the left to see the price estimate here.

How the deck calculator works

1

Enter deck details

Provide the deck size, material, height and desired features such as railings or a roof.

2

The calculator estimates the price

The calculator computes a price estimate based on typical deck projects in the Helsinki metropolitan area.

3

Request an exact quote

If you wish, you can request a free survey and an exact, binding quote.

Deck price examples

Small wooden deck

Size:12 m²
Material:Pressure-treated wood
Height:Ground level
Features:No railings
Price estimate:2 500–4 000 €

Medium composite deck

Size:25 m²
Material:Composite
Height:Raised (60 cm)
Features:Railings + stairs
Price estimate:8 000–14 000 €

Large deck with roof

Size:40 m²
Material:Composite
Height:Raised
Features:Railings + roof
Price estimate:18 000–28 000 €

Common deck budget mistakes

Underestimating the foundation

Many forget that foundation work can account for up to 20–30% of the total deck cost, especially on sloping lots or soft ground.

Forgetting maintenance costs

A wooden deck requires regular oiling or painting every 1–2 years. Composite is more expensive but virtually maintenance-free.

Forgetting railings and stairs

Railings and stairs add significantly to the price – especially if the deck is raised and building regulations require railings.

Neglecting permits

A raised deck or a deck with a roof may require a building permit. Always check local regulations before starting the project.

What determines the price of a deck?

Building a deck is an investment that requires careful planning and professional work. The total cost of a deck is influenced by several factors, the most important being the deck size, the material used, the complexity of the structures and the location.

Area and structures form the basis of the costs. A larger deck requires more materials and labour hours. Foundation work, frame construction and decking are all precise craftsmanship that affects the durability and appearance of the end result.

Material choice is a significant cost factor. Traditional pressure-treated wood is the more affordable option, while composite materials are more expensive but more durable and require less maintenance. In addition to the material, railings, stairs and a possible roof increase the total cost.

Height and terrain conditions particularly affect the foundation work. A raised deck requires stronger foundations and more work than a ground-level deck. The quality of the soil and the slope of the yard can also affect the amount of work and thus the price.

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Frequently asked questions about deck pricing

Modern kitchen - professional renovation work

Need help building or renovating a deck?

We offer high-quality deck services in the Helsinki metropolitan area. Request a free estimate today!

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Petri Lindfors, Kevyt Rempan renovation expert

Petri LindforsRenovation expert

When you submit a quote request, Petri personally reviews your project and photos, estimates a realistic budget and timeline, and tells you honestly what makes sense to do now and what can wait.

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200+ satisfied customers in the Helsinki metropolitan area