New Revised Standard Version
David also provided great stores of iron for nails for the doors of the gates and for clamps, as well as bronze in quantities beyond weighing,

Contemporary English Version
He got a large supply of iron to make into nails and hinges for the doors, and he provided so much bronze that it could not be weighed.

New American Bible
David also laid up large stores of iron to make nails for the doors of the gates, and clamps, together with so much bronze that it could not be weighed,

Douay-Rheims Bible
And David prepared in abundance iron for the nails of the gates, and for the closures and joinings: and of brass an immense weight.

And David prepared in abundance iron for the nails of the gates, and for the closures and joinings: and of brass an immense weight.

prepared iron

1 Chronicles 29:2,7 And I with all my ability have prepared the expenses for the house of my God. Gold for vessels of gold, and silver for vessels of silver, brass for things of brass, iron for things of iron, wood for things of wood: and onyx stones, and stones like alabaster, and of divers colours, and all manner of precious stones, and marble of Paros in great abundance. . . .

without weight

1 Chronicles 22:14 Behold I in my poverty have prepared the charges of the house of the Lord, of gold a hundred thousand talents, and of silver a million of talents: but of brass, and of iron there is no weight, for the abundance surpasseth all account: timber also and stones I have prepared for all the charges.

1 Kings 7:47 And Solomon placed all the vessels: but for its exceeding great multitude the brass could not be weighed.

2 Chronicles 4:18 And the multitude of vessels was innumerable, so that the weight of the brass was not known.

Jeremiah 52:20 And the two pillars, and one sea, and twelve oxen of brass that were under the bases, which king Solomon had made in the house of the Lord: there was no weight of the brass of all these vessels.