Size: Twin/Twin
Item Dimensions : 79.1"L x 43.9"W x 65"H
Mattress Platform :
    TWIN SIZE / 76.0"L x 39.3"W
Slats : 10(TWIN)+10(TWIN) pcs

Height between upper bunk bed slats and floor:49.575"
Height between upper bunk bed slats and lower bunk bed slats: 33.75"

Trundle: 70.9"W x 40.6"D x 2.8"H
Trundle Panel : 75.5"W x 9.4" H
Trundle Mattress Platform :
    SIZE / 75.5"L x 39.3"W
Slats : 8 (Trundle) pcs

Main material : Solid Pine
Slats/Rail : Plywood
Side panels : MDF

Weight capacity : 350 lbs (TWIN BED : 175 lbs / Trundle : 200 lbs)
Product weight : 64.5 kg / 142.55 lb

Package Weight :

Package(1-2) :49 kg / 108.29 lb

Package (2-2) :19.5 kg / 43.1 lb

Package Dimension:

Package(1-2):203.5L x 33W x 21H cm / 80.12L x 13W x 8.27 H inch

Package(2-2):104.5L x 29.5W x 13.5W cm / 41.15L x 11.62W x 5.32H inch

You can also download the online instruction as follows:
ASSEMBLY INSTRUCTIONS