Work Tray
A work tray is a rimmed tray, about 23 by 17 cm to 28 by 18 cm in the ones we checked, that holds one activity and catches its spills. A child from 18 months carries it with two hands. Wooden trays cost $18.00 to $26.55 each at three sellers on October 2, 2026; a light kitchen tray works too.
The first lesson with it is Dry Pouring Between Two Pitchers. Not sure your child is ready for it? Two minutes of questions place your child on the sequence.
| Area | Practical Life |
|---|---|
| Used in | |
| From age | 18 months to 3.5 years |
| Make it | Easy to make at home |
| Buy it | About $18 to $27 (noted ) |
What the work tray is for
The tray is a boundary. Everything for one work sits inside the rim, the child carries it from shelf to table in one trip, and a spill stays on the tray. When the pieces go back and the tray is empty, the work is finished.
Montessori's 1912 book shows four-year-olds carrying trays of up to five water glasses to lay the table, and gives each child a wooden tray for clay. The one-activity tray on a shelf came later in Montessori classrooms. Nienhuis sells its small tray for practical life work such as pouring and polishing.
| Part | What it looks like |
|---|---|
| Base | Flat and light, about 23 by 17 cm to 28 by 18 cm |
| Rim | 3.4 to 4.4 cm high on the trays we checked, enough to stop a rolling bean |
| Handles | Cut-outs or end grips so two hands carry it level; Montessori Services' tray has them |
The lessons that use the work tray
Dry Pouring Between Two Pitchers
18 months to 3.5 yearsPouring rice or dried beans from one small pitcher into another on a tray, the classic first pouring lesson.
Wet Pouring Between Two Pitchers
2 to 4 yearsPouring water from one small pitcher to another on a tray, and wiping up drips with a sponge, the step after pouring beans.
Buying one: 3 listings checked October 2, 2026
| Seller and set | Made of | Price |
|---|---|---|
| Alison's MontessoriWooden Tray-Small (P113)Sale price; regular $20.00. 10.5 by 7.3 inches, 1.75 inches deep. Made in Thailand. | Wood | $18.00 |
| Montessori ServicesWooden Tray With Handles: Small (047200)11 by 7 inches, 1⅓ inches deep. Made in Sri Lanka. In stock. | Beech plywood and birch | $20.35 |
| NienhuisWooden Tray Small: Set Of 2 (047500)Price is for two trays, $26.55 each. 23 by 17 cm, 3.5 cm deep. | Birch plywood and beech | $53.10 |
- A shelf of six works needs six trays, so the price per tray adds up. Six from Alison's come to $108.00 at the sale price.
- A plastic serving tray from a kitchen shop does the same job and stands up to water better than wood. Pick one the child can carry loaded without tipping.
- Montessori Outlet's two-tray set and The Montessori Room's handled tray were out of stock when we checked, so neither is listed.
Making the work tray at home
What to gather
- A piece of 6 mm plywood at least 28 by 18 cm
- About 90 cm of pine strip, 12 by 35 mm
- Wood glue, a few small panel pins and medium sandpaper
- Food-safe oil or a water-based clear varnish
- A fine saw and a square
| Piece | Size and marking | How many |
|---|---|---|
| Base | 28 by 18 cm, 6 mm plywood | 1 |
| Long rims | 28 cm, 12 by 35 mm pine strip | 2 |
| Short rims | 15.6 cm, same strip, to fit between the long rims | 2 |
- 1Sand every edge of the base and the strips until a cloth dragged across them doesn't catch.
- 2Glue the two short rims between the long ones to make a frame 28 by 18 cm on the outside.
- 3Glue the frame onto the base, weight it with books and leave it overnight.
- 4Turn the tray over and tap two panel pins up through the base into each rim, so it holds when wet.
- 5Give it two coats of oil or varnish and let it cure before the first water work.
Keeping a full set on the shelf
- Wipe the tray after any water work and stand it on edge to dry before the next activity goes on it.
- Keep one activity to a tray. Once a second work creeps on, the child can't tell which pieces belong to which job.
Questions parents ask about the work tray
Where can I find cheap Montessori materials?
Start with what the kitchen already has. A work tray is any light rimmed tray; the cheapest wooden one we found was $18.00 at Alison's Montessori on October 2, 2026, and a plastic one costs less. Save the budget for materials where exact sizes are the lesson, such as the pink tower.
What size should a Montessori tray be?
Big enough to hold the whole activity inside the rim, small enough to carry with two hands at chest height. The trays we checked run 23 by 17 cm to 28 by 18 cm, with rims 3.4 to 4.4 cm high.
Wood or plastic?
Wood looks better on the shelf, and its weight steadies a carry. Plastic is lighter and shrugs off water. Either works if the rim is high enough to stop a rolling bean.
The Practical Life lessons page shows where the work tray sits in the order.