18 It abutted the sides of the gateways and was as wide as they were long; this was the lower pavement.

Read Ezekiel 40:18 Using Other Translations

And the pavement by the side of the gates over against the length of the gates was the lower pavement.
And the pavement ran along the side of the gates, corresponding to the length of the gates. This was the lower pavement.
This pavement flanked the gates and extended out from the walls into the courtyard the same distance as the gateway entrance. This was the lower pavement.