808-379-9411 / campboxengineering@gmail.com

Camp Box- Your ADU and Storage Discount Outlet

At Camp Box we can custom build anything you can dream, but one-off projects require the same amount of design and planning as production models and take twice as long to set up and execute so they are far less efficient and thus more costly; coupled with larger units and site builds that include hours of travel and cost go higher.Therefore, these standardized designs that we offer here, help us utilize economies of scale and mass production so that we can generate these units quickly and efficiently so that they are economical. Our goal is to make silly plastic sheds illogical as they do not utilize the full allowable limit of 120 square feet without a permit and have limited usability with non-standard doors and no windows, so it can be nothing more than storage. DPP allows only one accessory structure so multiple plastic buildings enters a grey area, while our units maximize rules and standard single wall construction make these units adaptable to many uses and easily modified and maintained unlike steel shipping containers.

Our Smaller Models:

4 foot by 8 foot plywood Flat Top Box w/ door, two windows, bed loft, outlet and 2 lights(unpainted)— $1500
8 foot by 8 foot Flat Top Box w/ door, two windows, 2 outlets and 2 lights(unpainted)—–$2,000
8 foot by 12 foot Flat Top Box w/ door, two windows, 2 outlets and 2 lights(unpainted)–$2,500
8 foot by 16 Flat top — $3,000
711 and 811 — $3,500
Delivery and foundation blocks extra. 
Outdoor Shower Add $150
Add Utility Sink $200
Add 3 foot by 3 foot Windows $150
*Outlets and light are free bonus items for which we do not guarantee function. 

Model- 938- The Flat Top Box— $3,500 unpainted (delivery extra)

Our simplest and most economical unit; features an 8 foot wall perimeter with a flat ceiling and roof with a .060”(1.5mil) Thermoplastic Polyolefin membrane flatroof system. It has a plywood floor ready to paint as well as T1-11 siding to provide a smooth interior a board and batten exterior-All UNPAINTED. We provide 4 outlets and 2 lights as well as an indoor sink and outdoor shower, with connections for a toilet and water heater- while these items are not allowed on a DPP accessory structure they can be removed easily if someone complains.

All of our production models are single wall construction meaning that the plywood siding provides the interior and exterior surface just like all older Hawaiian homes. Horizontal interior supports as well as the exterior battens create a web structural support. If you are in an elevated extremely high wind location and do not want wall vibration or desire insulation or sheetrock later and want a secondary interior flat(1 ½) or standard(3 ½) stud wall framing it can be added for $900 to any unit.

All units can be either right face or left face door and sink, shower and toilet canbe placed in any corner with your special-order unit.

Model 711- Modern Side Slope Studio w/ loft- $4,000 unpainted (delivery extra)

Utilizing mass production, we can make more progressive designs that are more complicated through our production process while still keeping cost down by minimizing waste and streamlining task. The modern roof slope allows for a generous loft/attic space that can expand comfortably to an 8 by 8 area (add$100) while staying well within Hawaii road regulations for transporting. Again, we include a utility sink, toilet hookup, and outdoor shower as well as two switched lights and five outlets. The water lines are fed by connecting to a gardenhose and unit is piped ready to connect to a tankless gas water heater by the sink. Power supply by simple extension cord. The short wall left of sink is ideal for adding base and wall cabinets and counters. There is soffit venting around the overhang of the white thermoplastic roof membrane with a life expectancy of 30 to 40 years. These wood frame structures, like any home, are extremely easy to work on if windows or doors need adding or flooring and paint, whereas plastic or steel containers are extremely challenging to modify. Stylish modern designs common accepted board and batten exterior make this unit an eye-pleasing addition to any property and hopefully acceptable for all watchful neighbors.

All units can be either right face or left face door and sink, shower and toilet can be placed in any corner with your special-order unit.

Delivery– Can range from $100 to more than $500 depending on distance and site maneuverability and terrain. Units are normally set on a double stack of 8-inch concrete blocks, so 16 inches roughly off the ground. We normally also do 2 stacks in the center for a total of 16 blocks on level ground for a total of $50 for your foundation. We provide straps that are integrated into the floor system that you can join with any standard ratchet strap unit and a ground anchor to secure the unit to the ground as they are light-weight and can shift in high winds. As we are always striving for efficiency and affordability to combat our affordable housing crisis we will gladly allow you to deliver the unit yourself with the use of our trailer with a deposit and adequate collateral.

Model- 1011 Traditional Rear Angle Roof w/ 2 lofts –$4,000 unpainted( del. ext)

A more standard traditional building style to fit in more classic neighborhoods and since it offers a longer elevated face accommodates headroom for two loft/attic spaces. One can span to 8 by 8 and the other up to nearly 5 by 8 so generous room, comes standard with 2- 4 by 8 lofts. With 3 windows and door on the front face on the base unit, additional windows can be added to any unit which are 3 foot by 3 foot and add $200 each(smaller is also avail). Access ladders of 2 by 4 mounted to the wall can be added to any unit for $100 each or free standing notched and locked together ladders for $150.

Again, like all units, comes with outlets, two lights, sink, outdoor shower and ready for water heater and toilet installation. Entry doors on all units can be either a flat panel in or outswing door or an aluminum storm door with glass and screen to provide even more airflow and visibility at the same price.

The finished bottom base floor ends up around 93 inches by 187 inches which totals 120.77 square feet and the doorway threshold deducts another 76 square inches which should be near the 120 sq foot max., however our entire business model is designed around us avoiding any an all red tape, conflicts and time consuming conversations, so therefore any responsibility for complying with any Hawaii rules and regulations of any nature or kind fall solely on you or the property owner and building purchaser. As always, across our great country, our governments are complaint driven so by conferring with your neighbors ahead of time and ensuring that they will be comfortable prior is good planning towards avoiding silly arguments over minuscule details. Remember also that DPP rules for accessory structures is to be 5 feet off of each property line.

Our goal is to provide fast and efficient buildings so we encourage smart planning, cooperation and flexibility so that no time is wasted and all are happy.

Camp Box Honolulu

Camp Box of Honolulu tries to provide economical options for Hawaiian life by itemizing the cost of every item so anyone can custom design a unit that fits any size desired, any budget and amount of finishing or totally unfinished as wished. We can build units On-Site or Off-Site as needed.

Our Services

Mobile Homes - Campers - Recreational Vehicles

Very modern, fashion forward design. Cost Effective for users. Efficient, Mobile and Towable.


Farm Structures - Off Grid Structures / Bathrooms

We can build any size, as simple or upgraded as you need and budget allows. Can add indoor/ outdoor showers, toilets, sinks, etc.

Storage Sheds, Kids Play House, etc.

Built to your specifications.  See Our Pricing Sheet for general pricing structure.

Tiny Homes - ADU's - Guest House - Cabanas - Pool House

Truly affordable customized “Tiny Homes”

Get a Quote

No Project Too Big Or Too Small

Latest Projects

20 x 9 Tiny House - ADU - Accessory Dwelling Unit

GOOGLE - Off Grid Bathroom Built For Google

Farm Bathroom

Client Testimonials

Exactly what I wanted and needed, a joy to work with and the price was spot on. Thank you Camp Box!!

Tiny House - ADU

Camp Box Honolulu

48-228 Kam Hwy, Kaneohe Hawaii 96744

Ryan (808) 379 - 9411