Scaffold or trestle: what do you really need?

What a trestle is and what it was designed for

A trestle or work stand is a low frame on which you lay a plank or a small platform. You stand a few steps above the floor, with no guardrails around you and no toe boards along the edge. That is exactly what it was designed for: short work, close by, on a level indoor floor. Think of masking a window frame or touching up one corner of a ceiling in a small room.

Its appeal lies in convenience. A trestle is set up in ten seconds and fits in the back of a van. That same convenience is why it often gets used for work it was never made for, for instance two trestles with a plank between them spanning a larger distance. At that moment a handy tool turns into a workplace that only holds up as long as nothing goes wrong.

The comparison with a ladder partly holds. Both are quick, both are light, and with both the user provides the stability. The difference is that on a trestle you at least stand with both feet on a flat surface. Where the line runs between these aids and a real scaffold is set out in the guide on ladder or mobile scaffold. Once that difference is clear, the trestle goes back to being used only for the work it was actually made for.

Key facts

Where a trestle falls short once the job grows

The first thing you notice is the height. A trestle brings you just above eye level, which reaches a ceiling in an ordinary room but not a stairwell, a tall hallway or anything on the outside of the house. Anyone wanting more height starts looking for a plank on the top step or something to stack underneath. That is precisely the moment to stop and reach for different equipment.

The second is workspace. On a trestle there is barely anywhere to set something down. Your paint tin stands on the floor, your tools lie below, and so you step up and down continuously. On an hour-long job that is dozens of times, and each one is a moment where you can misstep. It costs more time than assembling a scaffold you could have set up half an hour earlier.

The third is the edge. A trestle has no guardrails, so nothing stops you when you take a step back to look at your work. On painting and plastering work you do that almost automatically. A platform with a double guardrail and toe boards turns that reflex into a harmless movement rather than a fall. It is also why a platform with a hatch works better: you climb up through the opening and then stand fully enclosed. What that means in practice is covered under fall protection on a mobile scaffold.

The room scaffold as the first real step up

The RS44 room scaffold is the model that fills the gap between trestle and mobile scaffold. It is narrow enough to pass through a standard interior door from around 70 centimetres, so you can wheel it from room to room in one piece without dismantling. For anyone painting or plastering a whole house indoors, that saves time and loose-part hassle in every room.

At the same time you gain everything a trestle lacks: a fixed platform to stand on, guardrails around you and toe boards that stop tools rolling off. You simply set your brushes, roller and bucket down beside you and finish a whole wall without coming back down. The room scaffold is also the cheapest model in the range, deposit included.

The difference from a mobile scaffold lies mainly in height and application. The room scaffold is made for indoors, the mobile scaffold for indoors and outdoors and for far greater heights. Which of the two fits your job is set out side by side in the guide on mobile scaffold or room scaffold, along with the sizes each one covers. For purely indoor work in ordinary rooms you rarely need to go higher than the room scaffold reaches.

What guardrails, toe boards and stabilisers add

An Altrex mobile scaffold and room scaffold are built to EN 1004. That means the build follows a fixed sequence and a fixed set of parts, including double guardrails all round and toe boards along all four edges. Those parts come with the hire as standard, you do not have to order anything extra and you do not have to work out for yourself what is needed.

Toe boards look like a detail, but on site they do more work than the guardrail. They hold back a screwdriver, a roll of tape or half a brick that would otherwise slide off the platform. If someone walks beneath the scaffold, that is the difference between a fright and an accident. More on that build is covered in the explanation of EN 1004.

Stabilisers are the third part a trestle has no equivalent for. They enlarge the base area of the scaffold, so a narrow build stays stable at greater height. The higher you build, the further they extend. The guide on stabilising and anchoring covers when to fit them and when to anchor to the facade as well. Base plates belong to the same story, because a stabiliser only does its job if it rests on firm ground.

The options side by side, from trestle to wide scaffold

To make the choice concrete, it helps to line the options up. The difference lies not only in height, but above all in what sits around the platform and how wide the whole thing is. That width decides both the stability and whether you can get through an opening at all. So alongside the measurements, the table sets out what sits around the platform, because that is where a trestle and a scaffold really part ways.

When reading the table, pay attention to the last column. It says where each model belongs in practice, and that is usually a better guide than the maximum height. A scaffold that will not fit through your hallway is no solution either, however high it reaches on paper. Measure your access route and floor space first and only then the height. The dimensions per model are listed under mobile scaffold dimensions and sizes.

Working indoors: access, floors and ceiling height

Indoors a trestle almost always wins on manoeuvrability and loses on everything after that. The room scaffold answers exactly that, because it passes through the door while still offering a full platform. Do measure the narrowest passage first, because older houses often have a door that is tighter than the standard size. The guide on whether a mobile scaffold fits through the door gives the measurements you need.

Floor protection is the second point. A trestle is simply set down on a parquet floor and does not roll. A scaffold on castors does roll, and that calls for mats or a sheet if the floor is delicate. Lock the castors as soon as it is in position and never move it while someone is standing on it, not even over a short distance.

Ceiling height finally decides which model fits inside. In an ordinary living room the room scaffold is more than enough. In a hallway with a void or above a stairwell it gets harder, and then you look at a narrow mobile scaffold. Work above a staircase has its own approach, set out in the guide on a mobile scaffold over a stairwell. Never work there from a trestle on an intermediate step, because the ground below slopes away and there is nothing to hold on to.

Working outdoors: why a trestle rarely fits there

Outdoors almost every assumption changes. The ground is not level, there is wind, and heights quickly climb towards a gutter or a dormer. A trestle on paving or grass stands crooked by definition, and nothing catches you if it sinks a centimetre. A mobile scaffold has adjustable feet and stabilisers to solve exactly that. How hard it may blow before you stop, and which rules apply outdoors, is covered in the guide on working safely at height.

On top of that, outdoor work involves more material. Paint, sealant, tools, a length of fascia board or a new gutter all have to go up and stay somewhere. On a platform 245 centimetres long you can put that down, on a trestle you cannot. That difference decides whether you finish a facade in a day or spend two days on it.

• Ground outdoors is rarely level, so you need adjustable feet and base plates
• Wind comes into play as soon as you rise above the first floor
• Gutters and dormers sit far beyond the reach of a trestle
• Material and tools have to go up and stay somewhere
• You move along the facade, so braked castors beat lifting
• A taller build calls for anchoring to the facade

Calculating working height so you do not end up short

The measurement that counts is working height, and you calculate it as platform height plus two metres. An adult reaches roughly two metres above the surface they stand on. So anyone working up to a ceiling at three metres does not need a platform at three metres but at around one. Anyone reaching a gutter at seven metres stands at five.

This sum is exactly where a trestle runs out and a scaffold gives room. The range runs from 4.2 to 14.2 metres working height, so from low indoor work to well above a second floor. The working height page shows what each size reaches, including the intermediate ones. For indoor work on a ceiling you usually land on the lowest sizes, while facade work on a terraced house often sits around eight metres working height.

Always measure to the highest point you still need to reach, not to where you stand. On a facade that is often the top of the gutter or the underside of a roof edge. If you land around five metres, look at five metres working height. For work on the first floor, the page on the first floor helps.

Weight on the platform: tools, material and people

A trestle has no stated load class you can build on once material has to come up as well. On an Altrex mobile scaffold and room scaffold that is settled: load class 3 means 200 kilos per square metre of platform. That is enough for one person with tools and a decent stock of material, or for two people working on a facade together.

That headroom in loading changes the way you work. You do not have to go down for every new bucket or second sheet, and you can send parts up before you start. Do spread the weight across the platform rather than stacking everything in one corner, and keep the walking route clear. Carry heavy parts up with two people rather than hoisting them on your own.

What you can take up and where the limits sit is covered in the guide on load and weight on a mobile scaffold. For work where you hoist heavy parts, the wide RS52 is often more comfortable than the narrow RS51, simply because there is more floor to put something down on. On spray work or plastering with buckets, that extra floor space is the difference between working on and constantly clearing up.

Assembly, moving and the time it takes

The argument for a trestle is speed, and that argument is weaker than it looks. A room scaffold or a low mobile scaffold is standing in a short time, and after that nothing needs shifting within the same room. You assemble the scaffold yourself using the supplied manual and the instruction video, because Steigertaxi does not deliver it assembled and does not build it for you.

The assembly sequence is fixed for good reason: level the base, lock the castors, fit the frames, add the braces, place the platform with hatch, then guardrails and toe boards. Anyone following that order is never standing at height unprotected. The full step-by-step guide is in assembling a mobile scaffold. If you build alone, lay the parts out in sequence beside the scaffold before you start.

You move it with the platform empty and the stabilisers raised, then level it again. That takes a few minutes per position and is still faster than dragging a trestle around along with the plank, bucket and tools. On indoor work where you move from room to room that advantage is largest, because a room scaffold rolls through the door in one piece and is ready again straight away.

• Level the base frame before you build any higher
• Lock the castors and keep them locked while you work
• Complete the build up to guardrails and toe boards before starting work
• Move only with an empty platform and nobody on board
• Check that it is level again after every move

Hiring instead of buying a trestle

Anyone weighing up buying a trestle against hiring a scaffold usually counts the purchase price alone. More interesting is how often you use it and what you can do with it. A hired room scaffold or mobile scaffold stands there only on the days you need it, arrives complete and does not have to live in the shed afterwards. Wear and inspection of the equipment are not your concern either, because every set is checked between two hires.

The structure of the hire price helps here. The first day costs the full day rate and every following day only 5 percent of it, so leaving it standing for a week costs far less than seven separate days. Delivery and collection sit in a fixed amount per province, and order before 15:00 and the scaffold is with you the next working day. Current amounts are listed under the cost of a room scaffold.

You also pay a deposit that comes back within one working day after return. For the room scaffold that amount is low, for the mobile scaffolds it is higher; the exact figures are on the page about the deposit. If you are unsure which model fits, send a photo on WhatsApp and we will look at it with you. If you do not yet know how many days you need, we will think along about a period that is generous enough.