Flagpole materials in Finland: fibreglass, aluminium, steel and wood
Published Written by Flagpole Guides
This page is an English translation of the Finnish original. Where the two versions differ, the Finnish text is the original.
The material of a flagpole affects its weight, stiffness, need for care and service life. According to Suomalaisuuden Liitto, flagpoles used to be wooden, but nowadays poles of glass-fibre reinforced plastic are preferred. Businesses and public sites also use aluminium and steel. This guide compares the most common materials.
Glass-fibre reinforced plastic
According to Suomalaisuuden Liitto, poles of glass-fibre reinforced plastic (lujitemuovi) are preferred nowadays because they are light, durable and easy to care for. The material, often simply called fibreglass, does not rust or rot and needs no painting. A light pole can often be raised without a lift. A fibreglass pole flexes in the wind, which reduces the strain on the structure but shows as sway at the top. The usual colour is white.
Aluminium
An aluminium pole is stiffer than a fibreglass pole of the same length and is widely used at businesses, municipalities and housing companies. Aluminium does not rust the way steel does, and the surface is often anodised or painted. On aluminium poles the halyard often runs inside the pole, which suits public places. The construction is described in the guide to types of flagpoles.
Steel
Steel is the strongest and heaviest option, used mainly for very tall poles, windy sites and special locations. Steel needs hot-dip galvanising or other corrosion protection. The weight affects both transport and the size of the foundation, and a lift is often needed to erect the pole.
Wood
Wooden flagpoles used to be common according to Suomalaisuuden Liitto, and they are still found particularly in old farmyards and manors. Wood is a natural material that suits traditional surroundings, but it needs regular painting and protection against rot. Moisture, frost and the part at ground level put the most strain on wood.
The materials compared
| Material | Weight | Care needed | Usual use |
|---|---|---|---|
| Fibreglass | light | little | detached houses, cottages, housing companies |
| Aluminium | medium | little | businesses, municipalities, public spaces |
| Steel | heavy | corrosion protection | tall poles, special sites |
| Wood | medium | painting and rot protection | traditional farmyards |
Material and safety
Under section 29 of the Building Act, a structure must also meet the essential technical requirements that are essential to safety if its failure could endanger people, and building must follow good building practice. The manufacturer usually states the flag size and wind load the pole is designed for. More information is in the guide to flagpole safety.
Material and service life
The material affects how long the pole lasts and what care it needs. The surface of fibreglass can fade and become rough in sunlight over time, corrosion can appear at the joints of aluminium, and wood needs regular surface treatment. More information is in the guides to flagpole lifespan and flagpole maintenance.
Frequently asked questions
What is the most common flagpole material in Finland?
According to Suomalaisuuden Liitto, poles of glass-fibre reinforced plastic are preferred nowadays because they are light, durable and easy to care for. Flagpoles used to be made of wood.
Does an aluminium flagpole rust?
Aluminium does not rust the way steel does, because a protective oxide layer forms on its surface. An anodised or painted surface gives aluminium further protection, and the materials of the fittings affect whether corrosion appears at the joints.
Are wooden flagpoles still an option?
Yes, and wooden poles are still found, particularly in old farmyards. According to Suomalaisuuden Liitto, poles used to be wooden. Wood needs regular painting and protection against rot, because moisture and frost put a strain on it.
Sources
This guide is based on the following sources, most of them in Finnish:
- Liputus – Suomalaisuuden Liitto
- Rakentamislaki (751/2023), 29 § – Finlex (oikeusministeriö)
Related guides
- Types of flagpolesFlagpole types in Finland: the field pole, tilting pole, internal halyard pole, telescopic pole, wall and balcony poles, the omalippu and poles for businesses.
- Flagpole lifespanFlagpole lifespan in Finland: how material, weather, ground frost, care and flag size affect durability, the life of a flag and disposing of it.
- Flagpole maintenanceFlagpole maintenance in Finland: the spring check, washing the pole, halyard and pulley, and washing, drying, repairing and storing the flag.
- Flagpole safetyFlagpole safety in Finland: the Building Act’s requirements, wind load and storms, power lines and electrical work, buried cables and lowering the pole.
- Buying a flagpoleThe price of a flagpole in Finland: how height, material, halyard, base, delivery and installation affect it, and what consumer law and the Building Act say.