One of the first things I did when we got our van was to do a bunch of measurements. Many of these came in handy after I had my walls and ceiling covered and needed to find a beam to fasten something onto.
Promaster 3500 Extended Measurements
Interior floor
Floor length from front step to inside of rear doors - 13’ 3 ½”
Floor width to scuppers - 71 ¼”
Floor length behind wheel well - 25”
Wheel well width - 8 ½”
Wheel well length - 34”
Wheel well height - 17”
Front of wheel well to front step - 38 ½”
Width between wheel wells - 56”
Distance from floor edge to outboard of main frame rail - 8 ½”
Distance from floor edge to inside of main frame rail - 13 ¾”
Floor step height from ground to front of slider door - 20 ¾”
Floor step height from ground at back door - 25”
Passenger door step height - 20”
Seats (Factory swivel seats)
Distance between seat and B pillar trim - 5 ½”
Distance between arm rests - 10 ¾”
Interior Walls
Height to center of lower horizontal rail - 31”
Height to center of upper horizontal rail - 61 ½”
Width between secondary vertical wall supports @ bed - 76”
Wall depth at horizontal beams - 2 ¾”
Width between lower horizontal beams - 74”
Ceiling
Height to highest point of ceiling beam - 76”
Height to ceiling beam at outer edge - 74”
Width of ceiling beam to wall bend - 55 ¾”
Depth at ceiling beams - 1”
Size of over seat storage shelf - 52 ½” wide x 18 ½” deep x 7” height
Exterior measurements
Side door opening width to bump out @ C pillar - 49”
Side door opening to widest point - 51”
Side door opening height - 68 ½”
Rear door opening width to weather strip - 61 ¼”
Rear door opening height to latches - 69 7/8”
Rear door opening height to weather strip - 70 7/8”
Roof height at exterior rear center - 8’ 6”
Roof curve side to side at attachment pins - 1 3/16”
Ground clearance at lowest point (rear axle) - 7”
Ground clearance to trans pan - 8 ½”
Undercarriage
Brake cable from inboard passenger side main beam - 22”
Vehicle empty weight with full fuel tank and 2 humans - Front axle - 3320 lbs
(Promaster 3500 Extended) Rear axle - 2120 lbs
Total - 5440 lbs
Promaster 3500 Extended Measurements
Interior floor
Floor length from front step to inside of rear doors - 13’ 3 ½”
Floor width to scuppers - 71 ¼”
Floor length behind wheel well - 25”
Wheel well width - 8 ½”
Wheel well length - 34”
Wheel well height - 17”
Front of wheel well to front step - 38 ½”
Width between wheel wells - 56”
Distance from floor edge to outboard of main frame rail - 8 ½”
Distance from floor edge to inside of main frame rail - 13 ¾”
Floor step height from ground to front of slider door - 20 ¾”
Floor step height from ground at back door - 25”
Passenger door step height - 20”
Seats (Factory swivel seats)
Distance between seat and B pillar trim - 5 ½”
Distance between arm rests - 10 ¾”
Interior Walls
Height to center of lower horizontal rail - 31”
Height to center of upper horizontal rail - 61 ½”
Width between secondary vertical wall supports @ bed - 76”
Wall depth at horizontal beams - 2 ¾”
Width between lower horizontal beams - 74”
Ceiling
Height to highest point of ceiling beam - 76”
Height to ceiling beam at outer edge - 74”
Width of ceiling beam to wall bend - 55 ¾”
Depth at ceiling beams - 1”
Size of over seat storage shelf - 52 ½” wide x 18 ½” deep x 7” height
Exterior measurements
Side door opening width to bump out @ C pillar - 49”
Side door opening to widest point - 51”
Side door opening height - 68 ½”
Rear door opening width to weather strip - 61 ¼”
Rear door opening height to latches - 69 7/8”
Rear door opening height to weather strip - 70 7/8”
Roof height at exterior rear center - 8’ 6”
Roof curve side to side at attachment pins - 1 3/16”
Ground clearance at lowest point (rear axle) - 7”
Ground clearance to trans pan - 8 ½”
Undercarriage
Brake cable from inboard passenger side main beam - 22”
Vehicle empty weight with full fuel tank and 2 humans - Front axle - 3320 lbs
(Promaster 3500 Extended) Rear axle - 2120 lbs
Total - 5440 lbs