Engineering + Specifications



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The following outlines Engineering and Specifications for our elevator models. Additional information may be found at the links on the right:

Please feel free to contact US Residential Elevator for any engineering, specification or installation information not covered on this site.

System Specifications and Options
General Specifications
Hoistway Construction
Rail Reactions
Construction Requirements For Guide Rail Structural Support
Structural Support Assembly
Machine Room Equipment Location - Hydraulic
Top of Hoistway Equipment Location - Roomless
If The Controller Is To Be Located Outside Of The Hoistway
Electrical Power

Model Specifications and Options
The Urban Elevator
The Suburban Elevator

US Residential Elevator Specifications

  • Elevator cab interior dimensions are 36" wide x 48"
    deep, 36" wide x 60" deep or 40" wide x 54" deep.
    Standard US Residential Home Elevator cabs are 84" high.
  • The standard load rating for the US Residential Home
    Elevator is 950 pounds (430 kg.). A load rating of 750
    pounds (340 kg) is an available option.
  • Cab Speed is 40 fpm (.20ms).
  • Four (4) stops maximum are available in the US Residential
    Home elevator package (14 inch minimum travel
    between floors).
  • The US Residential Home Elevator is designed for 40 feet of
    minimum travel (Hydro) or 50 feet of maximum travel (MRL).
  • You must provide at least 99" Hydro/110" MRL of
    overhead clearance from the top of the hoistway to the
    finished floor level of the top landing.

Hoistway Specific Construction

Hoistway Configurations can be found at Hoistway Information.
  • When reviewing the proposed hoistway location, make sure that the structure of the building itself can handle the load of a chain hoist or roped pulley system at the top of the hoistway. This is needed to lift guide rails and other heavy components during elevator construction. To accommodate this chain or pulley system as well as the required elevator components, a minimum overhead clearance of 99" for the hydraulic model, 110" for the MRL model, as measured from the finished floor of the top landing, is required for an 84" cab (per code).
  • A service door must also be provided at the top of the hoistway so that elevator components can be serviced after installation is complete. This service door should be no less than 18" wide by 24" high, located above the top landing transom. Also check with your local code authorities for additional hatchway requirements.
  • When installing the Guide Rail Structural Support, you must make sure that it is attached to a load bearing wall that is able to handle the stresses of the rail loads. See minimum rail reactions shown below. 
  • Construct the pit floor to be no less than 8" below the finished floor level of the lowest landing. The pit floor must also be constructed of sufficient strength as to withstand a minimum 3400 pound impact. 
  • Check with your local code authorities before constructing your hoistway to assure compliance with all local and state code requirements.
  • The hallway door to the hoistway is not provided as part of the US Residential elevator package. The door should be a solid core type and should be 36" wide x 80" high or 36" wide x 84" high (for 84" high cab).
  • When constructing the hoistway you must make sure that all non-elevator related material (such as nonelevator building structure, piping, wiring, etc...) are removed from and/or rerouted away from the hoistway.
  • Power must be provided to top of hoistway prior to construction. All other electrical and telephone devices are to be installed after elevator installation is completed.

Minimum Rail Reactions

RX = 215 foot pounds.
RY = 550 foot pounds.

Safety considerations are not included in above rail reactions. When designing the hoistway you must include appropriate safety considerations. The force to pull out each fastener should not be less than 150 lbs.

  Rail Reactions

Construction Requirements For Guide Rail Structural Support

  • Use a 4" x 12" board or create an assembly of two 2" x 4" boards and two 2" x 12" boards using wood glue and #10 x 2 1/2" wood screws to create a structural support of appropriate strength (as shown above right).
  • Secure the above guide rail support at the top and bottom of the hoistway as well as at nine foot increments (or less) down the length of the hoistway.

Structural Support Assembly

Structural Suport

Macine Room Equipment Location - Hydraulic

  • For hydraulic models only.

Machine Room Equip Locations

Top of Hoistway Equipment Location - Roomless

  • For machine roomless models only.

Machine Roomless

If The Controller Is To Be Located Outside Of The Hoistway

  • The US Residential Home Elevator controller cabinet is 21" wide by 15 1/2" high by 8" deep. When attached to a wall outside of the hoistway, you must leave a 36" square work area in front of the controller cabinet. 
  • The controller must be located no more than 50 feet from the drive motor.

Elevator Power

  • 230 VAC, single phase, 30 amp.
  • 115 VAC, single phase, 15 amp (per code).
  • Check local codes for over current protection.
  • A telephone line also needs to be run to the controller.

The dimensions and specifications on our drawings and website are subject to change without notice. National, regional, and local codes may change at any time. Our local dealers and distributors should be your first contact to determine code compliance for the local installation site.