30 Litres of Extra Storage Gained by Stacking 3 Trofast Frames on Casters

The white Trofast frame, with model numbers that vary by region, uses the same 44 x 30 x 91 cm footprint in its tall configuration. It arrives flat-packed, goes together with a hex key in under fifteen minutes, and weighs about 12 kg when empty. Adding four 75 mm swivel casters to the underside, with brakes on two of them, raises the frame 8 cm off the floor and makes the lowest storage line easier to use.

Stacking three frames changes the format from children’s-bin furniture into a vertical storage column. The frames need L-brackets at the rear rails so the units act as one piece when moved. In the tall variant, three frames reach roughly 2.7 metres. The more common version stops near 1.5 m because it uses the shorter 91 cm frames as three low tiers.

The 30 litre figure comes from the space that a conventional low sideboard usually gives away below its lowest drawer. On a caster-mounted Trofast stack, storage continues down to the wheel line. The bins make the arithmetic visible: each large Trofast bin holds about 22 litres, and each shallow bin holds about 9. A three-frame column with mixed bin depths fits nine to twelve pull bins into a footprint under half a square metre.

Caster load before the first hole

Caster ratings deserve more attention than the colour of the wheels. A 75 mm nylon caster rated at 40 kg per wheel gives 160 kg across four wheels on paper. That figure assumes an even load and a rigid frame.

Trofast frames are particleboard with laminate facing; they are not plywood. A loaded top bin pulled forward puts torque through the column, and the rear casters can start to unweight before the stated wheel rating is reached. In daily use, a three-frame stack has a practical contents ceiling closer to 60 to 70 kg.

That ceiling assumes you have thought about where the weight sits. With 15 kg of tools in the bottom tier and folded linen up high, the column stays far more planted; load the heavy items into the top tier and the unit can tip the moment the second drawer is pulled.

How the casters are fastened decides whether the whole thing survives daily rolling. An M6 machine screw into a hammer-in threaded insert, drilled to the insert maker’s pilot specification, handles the repeated shear far better than a wood screw biting into 15 mm particleboard. Ordinary caster screws tend to loosen after months of movement, while a threaded insert keeps the connection sound for years.

The wheel layout is simple: braked casters at the two front positions, free swivels at the rear. That arrangement lets the column pivot away from a wall for rear access and helps stop creeping when a child pulls a bin.

Kallax as a bench, with the force sent downward

A 2x2 Kallax turned on its side stands about 77 cm tall on its own. Add a 5 cm cushion and the seat reaches roughly 82 cm, which is a little high for most dining arrangements but works well as an entryway seat. The assembly is easy; the structural detail is the way the load travels through the unit.

Kallax carries vertical compression through its dividers when it is used as shelving. As a bench, an adult sitting in the middle creates a point load across a horizontal span. The top panel of a 2x2 laid flat can bow measurably under an 80 kg adult over a couple of years.

A single 18 mm plywood spine solves the bench problem. Cut it to sit inside the unit and run across the width so the seat load is carried down into the dividers instead of across the unsupported top panel. The added material is about fifteen euros of plywood plus four wood screws.

If the spine is left out, the bow gets worse with time. By the point the sag is visible, the laminate may already have cracked along the divider joints.

The storage side is still the reason to do the build. A sideways 2x2 gives four 33 x 33 cm cubbies at seat height, sized for standard Kallax inserts or 33 cm baskets. Two basket-filled cubbies hold roughly 35 litres each. In a hallway, the bench uses about the same floor area as a plain shoe rack and stores around three times as much.

Pax internals without paying for every Komplement part

Pax wardrobe frames use the 32 mm hole pitch common to much European flat-pack cabinetry. IKEA’s Komplement fittings match that spacing, and so do many shelf pins and drawer runners sold on 32 mm centres. The pre-drilled Pax uprights are the useful part of the system.

A frequent retrofit is replacing fixed Komplement shelves with pull-out wire baskets from a kitchen-supply source. These often cost less per unit and can run on soft-close runners that the basic Komplement shelf lacks. Measuring the internal width comes first. A 100 cm Pax frame has an internal clear width of about 96 cm, so a third-party basket sold as 90 cm will have 6 cm of side-to-side slack unless the runner brackets are shimmed. The 50 cm and 75 cm Pax widths tend to be easier sizes for aftermarket parts.

Superfront is built around the same seam in the system. Its fronts, legs, and handles are cut to fit IKEA carcasses, including Pax, so a plain white Pax can take a fluted oak door and a brass pull while the box remains unchanged. The price premium over an all-IKEA build is real and can double the door budget. You are paying almost entirely for the visible surface, since the 60 cm carcass behind it stays as cheap as ever.

The one-shelf nightstand

A floating nightstand can be as simple as one Ekby bracket or a concealed cleat carrying a 30 cm shelf. The weak point is the wall fixing: drywall alone is a poor anchor for a loaded bedside shelf, so the bracket needs a stud or a proper cavity anchor rated above the 8 kg that a filled nightstand can reach.

Chalked paint over laminate needs a grip layer

Rust-Oleum Chalked is sold with the promise of no sanding and no priming. On raw wood or previously painted wood, that promise mostly works. On the melamine laminate used on a Malm or Hemnes dresser, it plays out differently. The finish dries fine and looks clean for the first couple of weeks, then a fingernail catches an edge and the paint lifts off in sheets.

Melamine is a non-porous thermoset surface. Chalk paint grips by making a mechanical key in porous stock, and a factory laminate gives it no useful tooth. A bonding primer is the missing layer, specifically a primer made for glossy and laminate surfaces.

Scuff the laminate with 220-grit paper just enough to break the surface sheen. Wipe it with a degreaser to remove manufacturing release agents, then prime. With that base in place, two thin coats of Chalked will cover a mid-tone laminate dresser with roughly a third of a 750 ml tin.

The finish also needs a top layer. Wax or matte polyacrylic sealer keeps the chalk finish from burnishing shiny where hands land most often. On a dresser, the exposed wear areas are usually the top edge and the area around the pulls.

Malm drawer interiors use the same laminate, and paint on the runner faces adds thickness that can bind the drawer in its channel. Keep coating away from the running surfaces and limit the paint to the parts that remain visible.

Cost against a ready-made storage unit

The caster-stacked Trofast column usually lands around 120 to 150 euros in parts. That includes three frames, twelve mixed bins, a caster set upgraded with threaded inserts, and L-brackets. A comparable commercial rolling storage unit sold assembled often costs two to three times as much and rarely offers the same bin modularity.

The Kallax bench with its plywood spine sits near 90 euros. Neither cost includes labour. For the Trofast column, the rolling conversion takes about forty minutes once the frames have already been assembled.

Every build here shares one weak point: a printed surface over particleboard that absorbs water at any exposed cut edge and swells for good. Nothing in the parts list tells you how many years of edge sealing a printed-chipboard carcass will actually take before the swelling wins in a bathroom or a damp garage.