IRON WOODS BOARDWALK DECKING

Below, you will a summary of current species and availability developed to assist you in your commercial boardwalk decking specifications.

All of the species discussed are readily available under certified under our Comprehensive Green By Nature Compliance Program. Some of the species listed are available with FSC certification for LEED/USGBC specifications.

All Species discussed are available in Iron Woods Premium Select Architectural, FEQ or FAS qualities.

A recent memorandum by the U.S. Army Core of Engineers on the subject of the Impracticality of non Ipe lumber for Boardwalk Decking during the post Hurricane Sandy reconstruction summarized as follows:

“The purpose of this memo is to provide clear evidence and justification for the necessity of specifying Ipe/Bethabara/Cumaru/Macaranduba tropical hardwood lumber species for Boardwalk decking.”

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Boardwalk Decking

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Ipe

Ipe remains the premier exterior hardwood having the highest natural resistance to termites and marine borers combined with a dimensional stability green to dry over any other species available.

Ipe continues to be readily available in a broad range of nominal and rough dimensions ranging from 1×4 all the way up to 4×12 and lengths up to 20’.

Residential Decking dimensions 1×4, 1×6, 5/4×4, 5/4×6 are available AD (Air Dried) 20% plus moisture content and KD (Kiln Dried) 12-18%. AD should be specified if face fastening, KD should be specified if the use of hidden fasteners is required. * Do not specify Ipe as Kiln Dried in dimensions thicker than net 1’’.

Sourcing large volumes of fixed lengths in Ipe remains a challenge and virtually impossible in longer lengths. Specifier’s should develop specifications that allow the use of random lengths 6’ to 20’ in order to facilitate reliable supply and lowest cost. Ipe may be specified in “Even” length units, though “Odd and Even” length combinations will result in additional cost savings.

Optimal net dimensions for decking as follows,

KD .75×3.5, .75×5.5, 1×3.5, 1×5.5
AD .75×3.5, .75×5.5, 1×3.5, 1×5.5, 1.5×3.5, 1.5×5.5, 1.5×7.25, 2.5×5.5, 2.5×7.25, 2.5×11.25, 3.5×5.5, 3.5×7.25, 3.5×11.25.

Note, When specifying for poorly ventilated decks always specify greater thickness to width ratios such as 1×3.5, 1.5×3.5, 2.5×5.5, 3.5×5.5.

The supply of FSC certified Ipe extremely limited and if available commands a price premium of at least 50%. *We do not recommend the specification of FSC certified ipe for commercial boardwalk constructions.

Delivery typically starting from stocks and completing with 120 -150 days subject project volumes.

A partial list of projects currently using ipe boardwalk decking include, Long Beach, Atlantic City, Far Rockaway, Jones Beach, Coney Island Boardwalk, Robert Moses State Park, Avon, Freedom Park, Strawberry Plains Audubon, Swamp Creek Sanctuary Audubon, Hudson River Park, High Line, Liberty Island Ferry Concourse, Disney, Sea World, Green Bay, & Milwaukee Riverwalk. The truth is that will find Ipe in boardwalk constructions throughout the United States and the rest of the world.

As the worlds premium boardwalk decking Ipe also commands the highest price for naturally durable hardwood boardwalk decking.


Cumaru

Cumaru continues to be readily available in a broad range of nominal and rough dimensions ranging from 1×4 all the way up to 12×12 and lengths up to 20’ Free of Heart Center and Free of Sapwood.

Cumaru is an excellent alternative to Ipe for commercial applications where it is not in direct contact with Marine Borers. Less dimensionally stable than ipe, greater thickness to width ratios improve performance.

Residential decking dimensions 1×4, 1×6, 5/4×4 and 5/4×6 should only be specified as KD (Kiln Dried) 12-16% to assure dimensional stability in application. *Do not specify Cumaru as KD in dimensions thicker than net 1’’.

Optimal net dimensions for decking as follows,

KD .75×3.5, 1×3.5, 1×5.5
AD  1.5×3.5, 1.5×5.5, 2.5×5.5, 2.5×7.25, 3.5×5.5, 3.5×7.25, 3.5×11.25.

Note, When specifying for poorly ventilated decks always specify greater thickness to width ratio’s, such as 1×3.5, 1.5×3.5, 2.5×5.5, 3.5×5.5.

Cumaru is one species where it is still possible to specify large volumes of single dimensions and lengths which makes it ideal for large commercial constructions. Specifier’s are advised to develop specifications that allow the use of random lengths 6’ to 20’ in order to facilitate reliable supply and lowest possible cost.

Cumaru prices typically fall 10-20% below Ipe prices.

Delivery is typically starting 60 days and completing with 120 -150 days subject project volumes.

Some projects currently using Cumaru boardwalk decking include Atlantic City, Coney Island. Beidler Forest Audubon, Absecon, Disney. This list is growing due to the price advantage associated with Cumaru. Cumaru is available as an FSC certified product with associated price premium.


Massaranduba

Massaranduba continues to be readily available in a broad range of nominal and rough dimensions ranging from 1×4 all the way up to 4×8 and lengths up to 20’ Free of Heart Center and Free of Sapwood.

Massaranduba  is an excellent alternative to Ipe for commercial applications where it is not in direct contact with Marine Borers. Harder than Ipe, Massaranduba may have a propensity towards splitting than Ipe or Cumaru. Less dimensionally stable than ipe, greater thickness to width ratios improve performance.

Residential Decking dimensions 1×4, 1×6, 5/4×4 and 5/4×6 should only be specified as KD (Kiln Dried) 12-14% to assure dimensional stability in application. *Do not specify Massaranduba as KD in dimensions thicker than net 1’’.

Optimal net dimensions for decking as follows,

KD 1×4, 5/4×4, 5/4×6
AD  1.5×3.5, 1.5×5.5, 1.5×7.25, 2.5×5.5, 2.5×7.25, 3.5×7.25, 3.5×11.25.

Note, When specifying for poorly ventilated decks always specify greater thickness to width ratio’s.such as 1×3.5, 1.5×3.5, 2.5×5.5, 3.5×5.5.

Massaranduba remains one species where this is still possible to source large volumes of fixed dimensions and lengths. Specifier’s should develop specifications that allow the use of random lengths 6’ to 20’ in order to facilitate reliable supply and lowest cost.

Massaranduba prices typically fall 20-30% below Ipe prices.

Delivery is typically starting 60 days and completing with 120 -150 days subject project volumes.

Some projects currently using Massaranduba boardwalk decking include Atlantic City…. Massaranduba is still a relatively new species to the boardwalk market. Massaranduba is available as an FSC certified product with associated price premium.

While not referenced in the Army Core of Engineers report there are a few other species that should be referenced related to boardwalk construction.


Greenheart

Greenheart has a long history in marine and boardwalk constructions, primarily as a rough sawn structural and piling material. Decking use has been more limited due to its dimensional instability. Greenheart is commonly used for piles, stringers and structural members in marine constructions due to its high resistance to marine borer attack without preservative treatment.

Greenheart is readily available in a broad range of rough dimensions ranging from 2×4 all the way up to 4×12 Free of Heart Center and Free of Sapwood and lengths up to 20’. Square Piling ( boxed heart ) is available up to 12×12 and lengths up to 20’. Round Piling is available in lengths to 60’

Greenheart as a species has a lot of tension in the fiber and is more prone than Ipe or Cumaru to movement in service and surface checking. *When specifying greenheart you  must consider that the longer the length specified the greater the chance for movement. Because of this tension greenheart does not store well and should be installed as soon as practicable after milling. *Greenheart Is Not recommended for Residential Decking.

Optimal net dimensions for Commercial decking as follows,

AD  1.5×3.5, 2.5×5.5, 3.5×7.25

Greenheart is one species where this is still possible to source large volumes in fixed dimensions and lengths but at a premium price. Specifiers should develop specifications that allow the use of random lengths 6’ to 20’ in order to facilitate reliable supply and lowest cost. Greenheart is one of the lowest cost naturally durable hardwood species.

Delivery typically starting 60 days and completing with 120 -150 days subject project volumes.

Some projects currently using Greenheart boardwalk decking include Fire Island Saltair Boardwalk, Brooklyn Bridge, & Coney Island.


Ekki

Ekki has a long history of use in Marine and Bridge constructions and is often specified for structural and heavy decking applications due to its availability in large and long defect free dimensions.

Ekki is readily available in a broad range of nominal and rough dimensions ranging from 2×4 all the way up to 12×12 Free of Heart Center and Free of Sapwood and lengths up to 40’.

Ekki is considered highly stable in heavy dimensions which makes it attractive for structural work. Ekki is commonly used for square piling, fenders, stringers, structural members and heavy decking in marine constructions due to its high resistance to marine borer attack without preservative treatment.

*Ekki Is Not recommended for Residential Decking.

Optimal net dimensions for Commercial decking as follows,
2.5×5.5, 2.5×7.25, 3.5X5.5, 3.5×7.25, 5.5X11.25

Ekki is one species where this is still possible to secure large volumes of fixed dimensions and lengths. Specifier’s should develop specifications that allow the use of random lengths 6’ to 20’ in order to facilitate reliable supply and lowest cost.

Ekki is priced in the middle of the naturally durable hardwood category.

Delivery typically starting 90 days and completing with 120 -150 days subject project volumes.

Some Projects currently using Ekki boardwalk decking include South Street Seaport, Liberty Island, New York City Transit Authority, Batavia Bridge, & Peach Tree Plaza Bridge. Ekki should always be considered where you need large dimensions and long lengths.


NON WOOD DECKING OPTIONS


FASTENERS

At Timber Holdings we believe that fasteners should be as strong and durable as the decking they are charged to hold down. First Developed for Atlantic City, Iron Woods Boardwalk Screws represent the state of the art in Boardwalk Deck Connection. Our super duty boardwalk screws are manufactured using high grade T-302 stainless steel heavy gauge wire, TPI passivated to improve corrosion resistance. Their heavy gauge and deep threads provide superior deck to stringer connections improving structural integrity and resistance to all nature has to dish out. While designed to outlast the decking that they hold down, their gauge and strength allow for their easy removal and re-use should decking replacement be required. You know the old adage, “Anything worth doing is worth doing well” At timber Holdings “We take life cycle performance seriously”

Iron Woods Boardwalk Screw
TECHNICAL DOWNLOADS

We have many files available to make it as easy as possible for you to see the possibilities available Iron Woods Boardwalk Decking. Use the search feature on the top right of the list to narrow your results. Don’t see what you need? Contact us.  

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Iron Woods Boardwalk Decking Screw (dwg)
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Iron Woods Boardwalk Decking Screw (dxf)
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Iron Woods Boardwalk Decking Screw (jpg)
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Iron Woods Boardwalk Decking Screw (pdf)
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