Tray units are the ultimate solution for classroom storage and organisation. Thanks to their simple operation, durability and colour-coded personalisation, it is no surprise that they have become a timeless staple in classrooms across the country.DesignThe design consists of four columns and 20 shallow trays. The quadruple column design ensures a suitable height for primary school aged children to reach the top trays without difficulty, whereas the shallow trays provide a suitable amount of storage space for this age group. Trays can either be assigned by pupil, or teachers can use these units to organise work per subject.A 20-tray unit may be ideal on its own for smaller classes, but can be used in combination with other tray units if additional storage is required. Using multiple units together allows you to create a custom layout that suits the shape of your classroom, optimising space better than a single, less adaptable unit of the same capacity. Quadruple column units are however cheaper per tray than single, double, and triple column alternatives, providing a more economic choice for schools on a tight budget.The unit itself is mobile, and supplied with castors to allow movement between classrooms or for easily storing out of the way when not in use.ConstructionThe unit is constructed using 18mm thick melamine faced chipboard (MFC), a common material in classrooms due to its strength and durability under frequent handling. This is supplemented with a protective laminated finish and 2mm thick ABS edging tape to create a smooth edge and prevent chipping. The supplied Gratnells trays are made from super-strong polypropylene to ensure a lifetime of use for an affordable price. Gratnells are one of the top education storage specialists in the UK, and used extensively in a majority of schools. The durable construction of this product allows us to proudly offer a 25 year guarantee on all units in this range, so your school can use its tight budget wisely. The MFC used in this product is FSC certified.Dimensions• Unit: 556 x 1357 x 485mm (H x W x D)• Shallow Gratnells Trays (each): 75 x 312 x 427mm (H x W x D)PersonalisationChoose from the following options when ordering to create a look that compliments your classroom:• Carcass colours: Beech (brown edging); Grey (dark grey edging)• Tray Colours: Blue; Blueberry Jelly; Clear; Cyan; Grape Jelly; Green; Grey; Kiwi Jelly; Lemon Jelly; Lime; Pink; Purple; Red; Strawberry Jelly; Tangerine; White; YellowUnits supplied with trays and castors and delivered fully assembled. Made in the UK. BS EN 14073-3:2004 compliant and FIRA tested for strength and stability.Please see the other products in this range: 24 Trays - D50331; 28 Trays - D50332; 32 Trays – D50334 .